MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate

MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate

Weather Climate and Adaptations of Animals of Climate  Intext Questions

Question 1.
I wonder who prepares the wheather report?
Answer:
The weather reports are prepared by the Meteorological Department of the Government.

Question 2.
I wonder why weather changes so frequently?
Answer:
Because factors affecting weather like temperature, humidity, etc. vary frequently.

Question 3.
What is the source of whether in the first place?
Answer:
All changes in the weather are caused due to sun.

Question 4.
Do fishes and butterflies also migrate like birds?
Answer:
No.

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Activity
Fill all the columns according to the data in the chart that you have prepared.
Answer:
Table
Weather data of a week
MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate img-1
(Rainfall may not be recorded for all the days since it may not rain everyday.)

Weather, Climate and Adaptations of Animals of Climate Text Book Exercises

Question 1.
Name the elements that determine the weather of a place?
Answer:
The day – to – day condition of the atmosphere at a place with respect to the temperature, rainfall, humidity, wind – speed, etc., is called the weather at that place.

Question 2.
When are the maximum and minimum temperature likely to occur during the day?
Answer:
The maximum temperature of the day occurs generally in the afternoon while the minimum temperature occurs in the early morning.

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Question 3.
Fill in the blanks:

  1. The average weather taken over a long time is called …………..
  2. A place receives very little rainfall and the temperature is high throughout the year, the climate of that place will be ……………. and
  3. The two regions of the earth with extreme climatic conditions are ………….. and ……………

Answer:

  1. Climate of the place
  2. Hot, dry
  3. Tropical, polar regions.

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Question 4.
Indicate the type of climate of the following areas:

  1. Jammu and Kashmir –
  2. Kerala –
  3. Rajasthan –
  4. North – east India –

Answer:

  1. Moderately hot and moderately wet climate.
  2. Very hot and wet climate.
  3. Hot and dry climate.
  4. Wet climate.

Question 5.
Which of the two changes frequently weather or climate?
Answer:
Weather.

Question 6.
Following are some of the characteristics of animals:

  1. Diets heavy on fruits
  2. White fur
  3. Need to migrate
  4. Loud voice
  5. Sticky pads on feet
  6. Layer of fat under skin
  7. Wide and large paws
  8. Bright colours
  9. Strong tails
  10. Long and Large beak.

For each characteristic indicate whether it is adaptation for tropical rainforests or polar regions. Do you think that some of there characteristics can be adapted for both regions?
Answer:

  1. Tropical rainforests
  2. Polar region
  3. Polar region
  4. Tropical rainforesl
  5. Tropical rainforests
  6. Polar region
  7. Polar region
  8. Tropical rainforets
  9. Tropical rain.forests
  10. Tropical rainfore’t

Question 7.
The tropical rainforest has a large population of animals. Explain why it is so?
Answer:
Tropical rain are found in Western Ghats and Assam in India, South – east Asia, central America and Central Africa. Because of continuous warmth and rain, this region supports wide variety of plants and animals. The major types of animals living in the rainforests are apes, gorillas, monkeys, tigers, lions, leopards, lizards, elephants, insects, birds and snakes.

The climate conditions in rainforests are highly suitable for supporting an enormous number and variety of animals. Thus, we can say that because of the hospitable climate conditions huge populations of plants and animals are found in the tropical rainforests.

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Question 8.
Explain, with examples, why we find animals of certain kind living in particular climatic conditions?
Answer:
Animals are adapted to survive in the conditions in which they live. Animals living in very cold and hot climate must possess special features to protect themselves against the extreme cold or heat. Polar bears have white fur so that they are not easily visible in the snowy white background. It protects them from their predators. It also helps them in catching their prey. To protect them from extreme cold, they have two thick layers of fur.

They also have a layer of fat under their skin. In fact, they are so well – insulated that they have to move slowly and rest often to avoid getting overheated. Physical activities on warm days necessitate cooling. So, the polar bear goes for swimming. It is a good swimmer. Its paws are wide and large, which help it not only to swim well but also walk with ease in the snow. While swimming under water, it can close its nostrils and can remain under water for long durations.
MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate img-2
It has a strong sense of smell so that it can catch its prey for food. Another well – known animal living in the polar regions is the penguin (Fig.). It is also white and merges well wTith the white background. It also has a thick skin and a lot of fat to protect it from cold. You may have seen pictures of penguins huddled together. This they do to keep warm.

Question 9.
How do elephant living in the tropical rainforest adapt itself?
Answer:
The elephant has adapted to the conditions of rainforests in many remarkable ways. Look at its trunk. It uses it as a nose because of whjch it has a strong sense of smell. The trunk is also used by it for picking up food. Moreover, its tusks are modified teeth. These can tear the bark of trees that elephant loves to eat.
MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate img-3
So, the elephant is able to handle the competition for food rather well. Large ears of the elephant help it to hear even very soft sounds. They also help the elephant to 4 keep cool in the hot and humid climate of the rainforest.

Choose the correct option which answers the following question:

Question 10.
A carnivore with stripes on its body moves very fast while catching its prey. It is likely to be found in

  1. Polar regions
  2. Deserts
  3. Oceans
  4. Tropical rainforests.

Answer:
4. Tropical rainforests.

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Question 11.
Which features adapt polar bears to live in extremely cold climate?

  1. A white fur, fat below skin, keen sense of smell.
  2. Thin skin, large eyes, a white fur.
  3. A long tail, strong claws, white large paws.
  4. White body, paws for swimming, gills for respiration.

Answer:
1. A white fur, fat below skin, keen sense of smell.

Question 12.
Which option best describes a tropical region?

  1. Hot and humid
  2. Moderate temperature, heavy rainfall
  3. Cold and humid
  4. Hot and dry.

Answer:
1. Hot and humid.

Extended Learning – Projects and Activities

Question 1.
Collect weather reports of seven successive days in the winter months (preferably December). Collect similar reports for the summer months (preferably June). Now prepare a table for sunrise and sunset times as shown:
Table
MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate img-4

Try to answer the following questions:

  1. Is there any difference in the time of sunrise during summer and winter?
  2. When do you find that the sun rises earlier?
  3. Do you also find any difference in the time of sunset during the month of June and December?
  4. When are the days longer?
  5. When are the nights longer?
  6. Why are the days sometimes longer and sometimes shorter?
  7. Plot the length of the days against the days chosen in June and December?

Answer:

  1. Yes.
  2. Sunrises earlier during summer.
  3. Yes, sunsets earlier during winter.
  4. During summer, the days are longer.
  5. During winter, the nights are longer.
  6. Earth revolves around the sun. During different times, the angle of earth with the sun changes. This causes the difference in length of day and night.
  7. Length.

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Question 2.
Collect information about the Indian Meteorological Department. If possible visit its website: http//www.imd.gov.in. Write a brief report about the things this department does.
Answer:
Do with the help of your subject teacher.

Weather, Climate and Adaptations of Animals of Climate Additional Important Questions

Objective Type Questions

Question 1.
Choose the correct alternative:

Question (i)
The weather reports are prepared by the –
(a) Meteorological Department of the Government
(b) Agricultural Department of the Government
(c) Radio and TV Department of the Government
(d) None of these.
Answer:
(a) Meteorological Department of the Government

Question (ii)
The climate of the north – east is –
(a) Hot
(b) Wet
(c) Cold
(d) Dry.
Answer:
(b) Wet

Question (iii)
The climate of the western region is –
(a) Hot
(b) Wet
(c) Dry
(d) Hot and dry.
Answer:
(d) Hot and dry.

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Question (iv)
The lion – tailed macaque lives in the rainforests of –
(a) Western Ghats
(b) Eastern Ghats
(c) Both (a) and (b)
(d) None of these.
Answer:
(a) Western Ghats

Question (v)
Which are of the following is a migratory bird –
(a) Penguin
(b) Peacock
(c) Crow
(d) Siberian crane.
Answer:
(d) Siberian crane.

Question 2.
Fill in the blanks:

  1. The temperature, humidity and other factors are called the ……………. of the weather.
  2. Rainfall is measured by an instrument called the …………….
  3. All changes in the weather are caused by …………….
  4.  ……………. Record the weather every day.
  5. The polar regions are situated near the …………….
  6. Musk oxen, foxes, seals, etc. are living in the ……………. regions.
  7. The tropical region has generally a ……………. climate.
  8. Animals are adapted to the conditions in which they …………….
  9. Penguins lives in ……………. regions.
  10. The beard ape lives in the rainforests of …………….

Answer:

  1. Elements
  2. Rain gauge
  3. Sun
  4. Meteorologists
  5. Poles
  6. Polar
  7. Hot
  8. Live
  9. Very cold
  10. Western Ghats.

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Question 3.
Which of the following statements are true (T) or false (F):

  1. The weather is generally not the same on any two days and week after week.
  2. The camel is called the ship of the desert.
  3. The times of sunrise and sunset also change during the year.
  4. The climate of the Kerala is very cold for most part of the year
  5. Penguins lives in very cold.
  6. Animals are adapted to the conditions in which they live.
  7. All the changes in the weather are driven by the sun.
  8. Migration is another means to escape the harsh, cold conditions.
  9. Polar bears are found in Indian tropical rainforests.
  10. The winter sleep of animals is called migration.

Answer:

  1. True (T)
  2. True (T)
  3. True (T)
  4. False (F)
  5. True (T)
  6. True (T)
  7. True (T)
  8. True (T)
  9. False (F)
  10. False (F).

Question 4.
Match the items in Column A with Column B:
MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate img-5
Answer:

(i) (b)
(ii) (d)
(iii) (a)
(iv) (c)

Weather, Climate and Adaptations of Animals of Climate vert short  Answer Type Questions

Question 1.
Who prepares the weather report?
Answer:
The weather reports are prepared by the Metreological Department of the Government.

Question 2.
What do you mean by weather?
Answer:
The day – to – day condition of the atmosphere at a place with respect to the temperature, rainfall, wind speed, humidity, is called the weather of that place.

Question 3.
What do you mean by climate?
Answer:
The average weather pattern taken over a long time, say 25 years, is called the climate of the place.

Question 4.
When is the climate of a place called hot and wet?
Answer:
If there is heavy rainfall on most of the days as well as the temperature is high in the same place, then we can say that the climate of that place is hot and wet.

Question 5.
When is the climate of a place called hot?
Answer:
If the temperature at a place is high most of the time, then we say that the climate of that place is hot.

Question 6.
Why do some places have hotter climate than others?
Answer:
The places nearer to the equator are usually hotter. This is because the sim’s rays are more concentrated near the equator than they are farther North or South.

Question 7.
Which causes the changes in weather?
Answer:
Sun.

Question 8.
Name the location in India where climate is hot and dry?
Answer:
Rajasthan.

Question 9.
Name the location in India where climate is wet.
Answer:
North – east.

Question 10.
Define raingauge.
Answer:
Rainfall is measured by an instrument called the raingauge.

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Question 11.
Name two animals found in cold climate?
Answer:
Polar bear and Penguins.

Question 12.
Name two animals found in hot and humid climate.
Answer:
Beard ape and Red – eyed frog.

Question 13.
Name two deserts animal.
Answer:
Camel and snake.

Question 14.
Where does penguin live?
Answer:
Penguin lives in very cold places.

Question 15.
What makes penguins good swimmers?
Answer:
Penguin’s bodies are streamlined and their feet have webs, making them good swimmers.

Question 16.
How are the paws of a polar bear?
Answer:
Wide and large.

Question 17.
Can a polar bear live happily on land?
Answer:
No, it lives happily where the land is fully covered with snow.

Question 18.
Where do the elephant live ?
Answer:
Elephant lives in forest.

Question 19.
Name two countries where the tropical rainforests are found?
Answer:
India and Brazil.

Question 20.
Name two countries where polar regions are found?
Answer:
Sweden and Canada.

Question 21.
Name four countries in polar region?
Answer:
Norway, Iceland, Canada and Greenland.

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Question 22.
Name the major types of animals living in rainforest?
Answer:
The major types of animals living in the rainforests are apes, lions, tigers, monkeys, gorillas, elephants, leopards, snakes, birds and lizards.

Question 23.
Where do the following animals live?

  1. Fish
  2. Monkeys
  3. Snakes

Answer:

  1. In water
  2. On land and trees
  3. On land and water.

Question 24.
Name any two animals which are active during night?
Answer:
Owl and Bat.

Question 25.
Name the bird from Siberia that comes to India?
Answer:
Siberian Crane.

Weather, Climate and Adaptations of Animals of Climate Short Answer Type Questions

Question 1.
Differentiate between weather and climate?
Answer:
Difference between weather and climate:

Weather:
The day – to – day condition of the atmosphere at a place with respect to the temperature, rainfall, windspeed, humidity, etc. is called the weather at that place.

Climate:
The average weather pattern taken over a long time, say 25 years, is called the climate of that place.

Question 2.
Write a short note on the sun?
Answer:
All changes in the weather are caused by the sun. The sun is a huge sphere of hot gases at a very high temperature. The distance of the sun from us is very large. Even then the energy sent out by the sun is so huge that it is the source of all heat and light on the earth. So, the sun is the primary source of energy that causes changes in the weather.

Energy absorbed and reflected by the earth’s surface, oceans and the atmosphere play important roles in determining the weather at any place. If you live near the sea, you would have realised that the weather at your place is different from that of a place in a desert, or near a mountain.

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Question 3.
How do penguins adapt with polar climate?
Answer: Penguins are white and merge well with the white background. They also have a thick skin and a lot of fat to protect it from cold. Penguins huddle together. This they do to keep warm. Further, their bodies are streamlined and their feet have webs, making them good swimmers.

Question 4.
How is camel adapted to live in desert?
Answer:
Camel lives in desert. It has long legs which help it to lift its body above the ground. So, camel is able to avoid direct contact with the hot ground. Camel drinks more than 50 litres of water at a time. Camel store the water in his body. So that it lives without water for a longer time. Due to its thick skin, transpiration of water is also prevents. That’s why camel is suited to live in desert.

Question 5.
How are fishes adapted to live in water?
Answer:
Fishes are best suited to live in water. They have structure like a boat, which help them in swimming in water. They have gills from which they get food and oxygen. The body of fishes contain different types of fins which help them for swimming in water.

Question 6.
What is the climate of polar regions?
Answer:
The polar regions present an extreme climate. These regions are covered with snow and it is very cold for most part of the year. For six months the sun does not set at the poles while for the other six months the sun does not rise. In winters, the temperature can be as low as 37°C. Animals living there have adapted to these severe conditions.

Question 7.
Where the polar regions are situated? Name some of the countries that belong to the polar regions. Also name the some countries where the tropical rainforests are found.
Answer:
The polar regions are situated near the poles, i.e., north pole and south pole. Some well – known countries that belong to the polar regions are Canada, Greenland, Iceland, Norway, Sweden, Finland, Alaska in U.S.A. and Siberian region of Russia. Some countries where the tropical rainforests are found are India, Malaysia, Indonesia, Brazil, Republic of Congo, Kenya, Uganda, and Nigeria.

Question 8.
Write the features of lion – tailed macaque?
Answer:
The lion – tailed macaque (also called Beard ape) lives in the rainforests of Western Ghats. Its most outstanding feature is the silver – white mane, which surrounds the head from the cheeks down to its chin. It is a good climber and spends a major part of its life on the tree. It feeds mainly on fruits. It also eats seeds, young leaves, stems, flowers and buds. This beard ape also searches for insects under the bark of the trees. Since it is able to get sufficient food on the trees, it rarely comes down on the ground.

Weather, Climate and Adaptations of Animals of Climate Long Answer Type Questions

Question 1.
Answer:

MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate img-7

Question 2.
Write a note about “climate of the tropical rainforests”?
Answer:
The tropical region has generally a hot climate because of its location around the equator. Even in the coldest month the temperature is generally higher than about 15°C. During hot summers, the temperature may cross 40°C. Days and nights are almost equal in length throughout the year. These regions get plenty of rainfall. An important feature of this region is the tropical rainforests. Tropical rainforests are found in Western Ghats and Assam in India, Southeast Asia, Central America and Central Africa. Because of continuous warmth and rain, this region supports wide variety of plants and animals. The major types of animals living in the rainforests are monkeys, apes, gorillas, lions, tigers, elephants, leopards, lizards, snakes, birds and insects.

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Question 3.
For which animals the climatic conditions in rainforests are highly suitable?
Answer:
The climatic conditions in rainforests are highly suitable for supporting an enormous number and variety of animals. Since the numbers are large, there is intense competition for food and shelter. Many animals are adapted to living on the trees. Red – eyed frog (Fig. (a)) has developed sticky pads on its feet to help it climb trees on which it lives. To help them live on the trees, monkeys (Fig. (b)) have long tails for grasping branches. Their hands and feet are such that they can easily hold on to the branches.
MP Board Class 7th Science Solutions Chapter 7 Weather, Climate and Adaptations of Animals of Climate img-8

MP Board Class 7th Science Solutions

MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants

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MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants

Nutrition in Plants Intext Questions

Question 1.
Boojho wants to know how plants prepare their own food?
Answer:
Plants are the only that can prepare food for themselves by using water, carbon dioxide and minerals.

Question 2.
Paheli wants to know why our body cannot make food from carbon dioxde, water and minerals like plants do?
Answer:
Our body do not have chlorophyll.

Question 3.
Boojho wants to know how water and minerals absorbed by roots reach the leaves?
Answer:
Water and minerals are transported to the leaves by the vessels which run like pipes throughout the roots, stems and leaves of the plant. They form a continuous path or passage for the nutrients to reach the leaves.

Question 4.
Paheli wants to know what is so special about the leaves that they can synthesize food but other parts of the plant cannot?
Answer:
Because the leaves have a green pigment called chlorophyll.

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Question 5.
Boojho has observed some plants with deep red, violet or brown leaves. He wants to know whether these leaves also carry out photosynthesis?
Answer:
No.

Question 6.
Paheli wants to know whether mosquitoes, bed bugs, lice and leeches that suck our blood are also parasites?
Answer:
Lice are parasites. Mosquitoes are not parasites because they suck blood to incubit their eggs and not for nutrition.

Question 7.
Boojho is confused. If the pitcher plant is green and carries out photosynthesis, then why does it feed on insects?
Answer:
Because these plants do not get enough nutrition from the soil as required.

Question 8.
Boojho wants to know how these organisms acquire nutrients. They do not have mouths like animals do. They are not like green plants as they lack chlorophyll and cannot make food by photosynthesis?
Answer:
These organisms acquire food from dead organisms.

Question 9.
Paheli is keen to know whether her beautiful shoes, which she wore on special occasions, were spoiled by fungi during the rainy season. She wants to know how fungi appear suddenly during the rainy season?
Answer:
The fungal spores are generally present in the air. When they land on wet and warm things they germinate and grow During rainy season, there are more chances of things getting wet So, fungi spoil more things in rainy season.

Question 10.
Boojho says once his grandfather told him that his wheat fields were spoiled by a fungus. He wants to know if fungi cause diseases also?
Answer:
Yes, fungi causes diseases in plants, animals and humans. However, some fungi are also used is medicines.

Nutrition in Plants Text book Exercises

Question 1.
Why do organisms need to take food?
Answer:
Food is needed by all living organisms for the following purposes:

  1. Get energy to do work.
  2. Build up body.
  3. Improve resistance power against diseases and protects us from infections.
  4. Replacement and repairing damaged part in the body.
  5. Maintain the functions of the body.

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Question 2.
Distinguish between a parasite and a saprotroph?
Answer:
Distinguish Parasite and Saprotroph:
Parasite:

  1. They derives nutrients from the body of some other living organisms.
  2. They use the heterotrophic mode of nutrition.
  3. They mostly live on or in the host.
  4. Examples: Tapeworm, Round warm, Cuscutta, Puccinia, etc.

Saprotroph:

  1. They derives nutrients from dead and decaying organisms.
  2. They use saprotrophic mode of nutrition.
  3. They live on dead and decaying stuff.
  4. Examples: Mushrooms, Bacteria, Yeast, etc.

Question 3.
How would you test the presence of starch in leaves?
Answer:
Starch Test:
Take the green leaf to be tested. Boil it in water for 5 minutes (approximately). Keep it in the 60% angle amyle alcohol at 60°C till it becomes colourless. Now take the colourless leaf out from alcohol and wash it with cold water. Also pour few drops of dilute iodine solution on the leaf. The leaf becomes very blue with the solution which proves the presence of starch is the leaf.

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Question 4.
Give a brief description of the process of synthesis of food in green plants?
Answer:
The leaves have a green pigment called chlorophyll. It helps leaves to capture the energy of the sunlight. This energy is used to synthesize (prepare) food from carbon dioxide and water. Since the synthesis of food occurs in the presence of sunlight, it is called photosynthesis (Photo: light: synthesis: to combine).

So we find that chlorophyll, sunlight, carbon dioxide and water are necessary to carry out the process of photosynthesis. It is a unique process on the earth. The solar energy is captured by the leaves and stored in the plant in the form of food. Thus, sun is the ultimate source of energy for all living organisms.

During photosynthesis, chlorophyll containing cells of leaves, in the presence of sunlight, use carbon dioxide and water to synthesise carbohydrates. The process can be represented as an equation.
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-1
During the process oxygen is released. The carbohydrates ultimately get converted into starch. The presence of starch in leaves indicates the occurrence of photosynthesis. The starch is also a carbohydrate.
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-2

Question 5.
Show with the help of a sketch that the plants are the ultimate source of food?
Answer:
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-3

Question 6.
Fill in the blanks:

  1. Green plants are called …………….. since they synthesise their own food.
  2. The food synthesised by the plants is stored as ……………..
  3. In photosynthesis solar energy is captured by the pigment called ……………..
  4. During photosynthesis plants take in …………….. and release

Answer:

  1. Autotrophs
  2. Starch
  3. Chlorophyll
  4. Carbon dioxide, oxygen.

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Question 7.
Name the following:

  1. A parasitic plants with yellow, slender and tubular stem.
  2. A plant that has both autotrophic and heterotrophic mode of nutrition.
  3. The pores through which leaves exchange gases.

Answer:

  1. Cuscuta (Amarbel)
  2. Pitcher plant
  3. Stomata.

Question 8.
Tick the correct answer:
(a) Amarbel is an example of –
(i) Autotroph
(ii) Parasite
(iii) Saprotroph
(iv) Host.
Answer:
(ii) Parasite

(b) The plant which trape and feeds on insects is –
(i) Cuscuta
(ii) China rose
(iii) Pitcher plant
(iv) Rose.
Answer:
(iii) Pitcher plant.

Question 9.
Match the items given in Column I with those in Column II:
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-4
Answer:

(i) (d)
(ii) (a)
(iii) (e)
(iv) (b)
(v) (c)

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Question 10.
Mark “T” if the statement is true and “F” if it is false:

  1. Carbon dioxide is released during photosynthesis. (T/F)
  2. Plants which synthesise their food themselves are called saprotrophs. (T/F)
  3. The product of photosynthesis is not a protein (T/F)
  4. Solar energy is converted into chemical energy during photosynthesis. (T/F)

Answer:

  1. False (F)
  2. False (F)
  3. True (T)
  4. True (T)

Question 11.
Choose the correct option from the following:
Which part of the plant gets carbon dioxide from the air for photosynthesis –
(i) Root hair
(ii) Stomata
(iii) Leaf veins
(iv) Sepals.
Answer:
(ii) Stomata.

Question 12.
Chose the correct option from the following:
Plants take carbon dioxide form the atmosphere mainly through their –
(i) Roots
(ii) Stem
(iii) Flowers
(iv) Leaves.
Answer:
(iv) Leaves.

Nutrition in Plants Additional Important Questions

Objective Type Questions

Question 1.
Choose the correct alternative:

Question (i)
The green coloured pigment present in plants is ………….
(a) Xanthophyll
(b) Haemoglobin
(c) Chlorophyll
(d) None of these.
(c) Chlorophyll

Question (ii)
The life processes that provide energy are ……………
(a) Respiration
(b) Nutrition
(c) Both respiration and nutrition
(d) None of these.
Answer:
(c) Both respiration and nutrition

Question (iii)
Which of these are autotrophs …………..
(a) Green plants
(b) All plants
(c) All animals
(d) None of these.
Answer:
(a) Green plants

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Question (iv)
………….. changes solar energy into chemical energy.
(a) Oxygen
(b) Carbon – di – oxide
(c) Water
(d) Chlorophyll.
Answer:
(d) Chlorophyll.

Question (v)
………….. is saprophyte.
(a) Fungus
(b) Cuscuta
(c) Money plant
(d) Mosquito.
Answer:
(a) Fungus

Question 2.
Fill in the blanks:

  1. Resin, gum, latex are ……………. substances of plants.
  2.  …………….. is the mode of taking food by an organism and its utilisation by the body.
  3. The plant on which it climbs is called a ……………
  4. Plants which use saprotrophic mode of nutrition are called …………..
  5. Oxygen is produced during ……………..

Answer:

  1. Excretory
  2. Nutrition
  3. Host
  4. Saprotrophs
  5. Photosynthesis.

Question 3.
Which of the fallowing statements are true (T) or false (F):

  1. All organisms take food and utilise it to get energy for the growth and maintenance of their bodies.
  2. Chlorophyll and sunlight are not the essential requirements for photosynthesis.
  3. Solar energy is stored by the leaves with the help of chlorophyll.
  4. Oxygen is not produced during photosynthesis.
  5. Only a few plants adopt other modes of nutrition like parasitic and saprotraphic.

Answer:

  1. True (T)
  2. False (F)
  3. True (T)
  4. False (F)
  5. True (T).

MP Board Solutions

Question 4.
Match the items is Column A with Column B:
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-9
Answer:

(i) (b)
(ii) (d)
(iii) (a)
(iv) (b).

Question 5.
Name the following :

  1. A plants food factory.
  2. Living on another organisms and derive food from them.
  3. A chlorophyll containing partner, which is an alga, and a fungus live together.

Answer:

  1. Leaf
  2. Parasitic
  3. Lichens

Nutrition in Plants Very Short Answer Type Questions

Question 1.
How many types of nutritions are there?
Answer:
There are two types of nutritions. These are holophytic nutrition and holozoic nutrition.

Question 2.
How do symbiotic live?
Answer:
Symbiotic live with host and parasite which depend on host benefit.

MP Board Solutions

Question 3.
What are autotrophs? Give examples.
Answer:
The organism who can prepare their own food utilising sunlight, carbon dioxde and water, are known as autotrophs.
Examples: All green plants are autotrophs.

Question 4.
Define photosynthesis?
Answer:
The process by which the green plants prepare their food using carbon dioxide and water in the presence of chlorophyll and light is called photosynthesis.

Question 5.
What is the function of chlorophyll?
Answer:
Chlorophyll helps leaves to capture the energy of the Sun.

Question 6.
What are algae?
Answer:
The slimy green patches in ponds or in other stagnant water bodies are called algae.

Question 7.
What is the purpose of starch test?
Answer:
To confirm the presence of starch in the green plants.

Question 8.
Name two herbivorous animals?
Answer:
Deer, cow.

Question 9.
Name two omnivorous animals?
Answer:
Dog, cat.

MP Board Solutions

Question 10.
Name two carnivorous animals?
Answer:
Tiger, lion.

Question 11.
Name two leguminous plants?
Answer:
Gram, pea.

Question 12.
Name two insectivorous plants?
Answer:
Sundew, Aldrovenda.

Question 13.
Which bacteria can convert nitrogen into soluble term?
Answer:
Rhizobium.

Question 14.
Define autotrophs?
Answer:
Green plants synthesise their food themselves by the process of photosynthesis. They are autotrophs.

Nutrition in Plants Short Answer Type Questions

Question 1.
How do the exchange of gases occur in plants?
Answer:
In case of plants the lower surface of leaves have small pores called stomata. These are provided by two guard cells which control the opening or closing of the stomata. When the concentration of O2 gas increases during photosynthesis the guard cells open and O2 gas is given out and if concentration of CO2 gas increases during respiration, the guard cells cause CO2 gas to go out of the cells. This is how the exchange of gases occur in plants.

Question 2.
How many types of heterotrophs are there? Give examples.
Answer:
Organisms which depend upon plants and other organisms for their food are called heterotrophs. Heterotrophs can further be classified as:

1. Herbivorous Animals:
The organisms or animals who eat plants and plant products.
Examples: cow, horse, goat, etc.

2. Carnivorous Animals:
The animals who eat flesh of other animals are called carnivorous.
Examples: lion, tiger, wolf, etc.

3. Omnivorous Animals:
The animals who eat both plant and animals are called ominivorous animals.
Examples: man, cat, dog, crow, etc.

MP Board Solutions

Question 3.
W’hat is the difference between ‘heterotrophs and autotrophs’?
Answer:
The differences between two are:

Heterotroph:

  1. These are organism which can not make their own food.
  2. They do not have chloroplast.

Autotroph:

  1. They can make their own food.
  2. They have chloroplast.

Question 4.
Give two examples of insectivorous plants?
Answer:
The plants which have the special system to trap the insects and kill them are called insectivorous plants. The pitcher plant and venus faly trap plants. In the pitcher plant, the leaf is modified in form of a pitcher. When any insect visits this pitcher it is trapped and killed in it.

Question 5.
What is the difference between holophytic and holozoic type of nutrition?
Answer:
Those living beings such as plants who prepare their own food are called autotrophic and this type of nutrition is called as holophytic type of nutrition.

Those living beings who cannot prepare their own food but depend on food prepared by some other living beings are called heterotopic. This type of nutrition is called holozoic nutrition.

MP Board Solutions

Question 6.
How is Sun the ultimate source of energy for all the living beings?
Answer:
Green plants prepare food utilising sunlight. All other organisms depend on green plants directly or indirectly for their nutrition. Thus, Sun is the ultimate source of energy.

Question 7.
How is holophytic nutrition different from holozoic nutrition?
Answer:
1. Holophytic nutrition is found in plants and lower forms of animals they consume liquid food as they lack digestive systems.

2. Holozoic nutrition is found in man and other higher forms of animals. There is a well developed digestive system in all of them. Hence, they can consume solid food.

Nutrition in Plants Long Answer Type Questions

Question 1.
Draw a diagram of stomata?
Answer:
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-5

Question 2.
Give an experiment to demonstrate that light is necessary for photosynthesis?
Answer:
Take a broad leaved potted plant and keep it under dark for 24 – 48 hours. The plant is kept in dark to make the plant free from starch. After this fix a leaf still attached to the plant with a paper clip having paper black as shown in figure. Now keep the plant in light for few hours and test the leaf for starch. To test the leaf for starch, pluck the lgaf and kill its cells in boiling water. Remove the chlorophyll by boiling in alcohol. Wash the boiled leaf in water and treat with iodine solution.
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-6
It is believed that the portion of the leaf, exposed to sunlight turned blue in colour while the covered portion did not undergo any change. You know that starch give blue colour with iodine solution. This was because the covered portion did not receive any sunlight. This shows that sunlight is necessary for photosynthesis.

MP Board Solutions

Question 3.
Describe the process of nutrition in hydra?
Answer:
In hydra, the tentacles help in ingesting the food (taking the food inside). The cells inside the body cavity wall secrete certain chemicals and enzymes to digest the food. The digested food is absorbed by the cells of the wall in the body cavity by diffusion. On eating food the hydra grows and reproduces by forming buds.
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-7

Question 4.
Define cell with their structure
Answer:
The bodies of living organisms are made of tiny units called cells. Cells can be seen only under the microscope. Some organisms are made of only one cell. The cell is enclosed by a thin outer boundary, called the cell membrane. Most cells have a distinct, centrally located spherical structure called the nucleus (Fig.). The nucleus is surrounded by a jelly – like substance called cytoplasm.
MP Board Class 7th Science Solutions Chapter 1 Nutrition in Plants img-8

MP Board Class 7th Science Solutions

MP Board Class 7th Science Solutions Chapter 4 Heat

MP Board Class 7th Science Solutions Chapter 4 Heat

Heat Intext Questions

Question 1.
Boojho says, My left hand tells me that the water in mug C is hot and the right hand tells me that the same water is cold. What should I conclude?
Answer:
Both of the conclusions are true relative to each hand. But a single conclusion can not be drawn from the given information.

Question 2.
Boojho wondered which of the two scales shown in fig. he should read. Paheli told him that India has adopted the Celsius scale and we should read that scale. The other scale with the range 94-108 degrees is the Fahrenheit scales (°F). It was in use earlier.
MP Board Class 7th Science Solutions Chapter 4 Heat img-1
Answer:
Yes

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Question 3.
Boojho got a naughty idea. He wanted to measure the temperture of hot milk using a clinical thermometer. Paheli stopped him from doing so?
Answer:
Yes, do not use a clinical thermometer for measuring the temperature of any object other than he human body because it may break.

Question 4.
Boojho now understand why clinical thermometer can not be used to measure high temperatures. But still wonders whether a laboratory thermometer can be used to measure his body temperature?
Answer:
Yes, laboratory thermometer can also be used for measuring body temperature.

Question 5.
Boojho wonders why the level of mercury should change at all when the bulb of the thermometer is brought in contact with another object?
Answer:
The temperature of other object may not be the same as that of the bulb of the thermometer. When bulb is brought in contact with that object, the temperature of the bulb changes. Thus, the level of mercury also changes.

MP Board Solutions

specific heat Calculator of liquid water at constant volume or constant pressure at temperatures from 0 to 360 °C.

Question 6.
Paheli asks: “Does it mean that heat will not be transferred if the temperature of two objects is the same?”
Answer:
Yes.

Activities
Activity 1
Lost some objects you use commonly in given table. Mark these objects as cold or hot?
Answer:
MP Board Class 7th Science Solutions Chapter 4 Heat img-2

Activity 2
Measure the body temperature of some of your friends (at least 10) with a clinical thermometer.
Answer:
Observation for body temperature of some persons.
MP Board Class 7th Science Solutions Chapter 4 Heat img-3

Activity 3
Take a rod or flat strip of a metal, say of aluminium or iron. Fix a few small wax pieces on the rod. These pieces should be at nearly equal distances (fig.). Clamp the rod to a stand. If you do not find a stand, you can put one end of the rod in between bricks. Now, heat the other end of the rod and observe.
MP Board Class 7th Science Solutions Chapter 4 Heat img-4
What happens to the wax pieces? Do these pieces begin to fall? Which piece fall the first? Do you think that heat is transferred from the end nearest to the flame to the other end?
Answer:
The wax pieces start to melt and fall down.
Yes.
The piece nearest to the flame tall first. Yes, heat is transferred from the end nearest to the flame to the other end.

Activity 4
Heat water in a small pan or a beaker. Collect some articles such as a steel spoon, plastic scale, pencil and divider. Dip one end of each of these articles in hot water (fig.). Wait for a few minutes. Touch the other end. Enter your observation in Table.
MP Board Class 7th Science Solutions Chapter 4 Heat img-5
MP Board Class 7th Science Solutions Chapter 4 Heat img-6

Activity 5
Explain with activity heat transfer by conduction method?
Answer:
1. Aim:
To understand, ‘heat transfer by conduction’.

2. Required material:
Iron stick, some nails, candle.
MP Board Class 7th Science Solutions Chapter 4 Heat img-7

3. Process:
Attach the nails on thin iron rod at some intervals with help of candle-wax as shown in figure. Now heat one end of iron rod with candle.

4. Analysis:
When we Start heating one end of iron rod, nails start falling one by one. The nail which is adjacent to hot end of iron – rod, falls first and then other nails 1 fall in sequence. Falling of nails in sequence indicate heat flow by conduction. Some time later, heat reaches to other end of rod and entire rod becomes hot.

5. Conclusion:
Heat transfer in iron – rod takes place by conduction.

MP Board Solutions

Activity 6
Take a round bottom flask (if flask is not available, a beaker can be used). Fill it two – thirds with water. Place it on a tripod, or make some arrangement to place the flask in such a way that you can heat it by placing a candle below it. Wait till the water in the flask in still. Place a crystal of potassium permanganate at the bottom of the flask gently using a straw. Now, heat the water by placing the candle just below the crystal. Write your observation in your notebook and also draw a picture of what you observe.
Answer:
When water is heated, the water near the flame gets hot. Hot water rises up. The cold water from the sides moves
MP Board Class 7th Science Solutions Chapter 4 Heat img-8
down towards the source of heat. This water also gets hot and rises and water from the sides moves down. This process continues till the whole water gets heated. This mode of heat transfer is knwon as convection.

Heat Text book exercises

Question 1.
State similarities and differences between the laboratory thermometer and the clinical thermometer?
Answer:
Similarities:

  1. Both use mercury.
  2. Both measure temperature.

Differences:
1. The range of a mercury thermometer is 100°C. A mercury thermometer having graduations from 0°C to 100°C while the temperature interval marked on the clinical thermometers ranges from 35°C to 43°C.

2. The temperature on laboratory thermometer falls by itself, but not so in clinical thermometer. In clinical thermometers, a jerk is given so that it is set again for measuring human body temperature.

MP Board Solutions

Question 2.
Give two emamples each of conductors and insulators of heat?
Answer:
Conductors: Copper, Aluminium

Insulators: Wood, Plastic

Question 3.
Fill in the blanks:

  1. The hotness of an object is determined by its ………………
  2. Temperature of boiling water cannot be measured by a ………………. thermometer.
  3. Temperature is measured in degree …………………
  4. No medium is required for tansfer of heat by the process of ………………..
  5. A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of …………………..
  6. Clothes of ………………. dolours absorb heat better than clothes of light colours.

Answer:

  1. Temperature
  2. Clinical
  3. Celsius
  4. Radiation
  5. Conduction
  6. Dark/black.

Question 4.
Match the following:
MP Board Class 7th Science Solutions Chapter 4 Heat img-9
Answer:

(i) (d)
(ii) (c)
(iii) (b)
(iv) (a)

MP Board Solutions

Question 5.
Discusss why wearing more layers of clothing during winter keeps us warmer than waering just one thick piece of clothing?
Answer:
More layers of clothing keep us warm in winters as they have a lot of space between them. Air is a poor conductor of heat. This increases the insulation and thus, comfortability warm of the clothes as a whole.

Question 6.
Look at fig Mark where the heat is being transferred by conduction, by convection and by radiation?
Answer:
MP Board Class 7th Science Solutions Chapter 4 Heat img-10

Question 7.
In places of hot climate it is advised that the outer walls of houses be painted white. Explain?
Answer:
In places of hot climate it is advised that the outer wall of houses be painted white because white colour do not radiate heat easily.

MP Board Solutions

Question 8.
One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be

  1. 80°C
  2. More than 50°C but less than 80°C
  3. 20°C
  4. Between 30°C and 50°C

Answer:
4. Between 30°C and 50°C.

Question 9.
An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will

  1. Flows from iron ball to water.
  2. Not flow from iron ball to water or from water to iron ball.
  3. Flows from water to iron ball.
  4. Increase the temperature of both.

Answer:
2. Not flow from iron ball to water or from water to iron ball.

MP Board Solutions

Question 10.
A wooden spoon is dipped in a cup of ice cream. Its other end

  1. Becomes cold by the process of conduction.
  2. Becomes cold by the process of convection.
  3. Becomes cold by the process of radiation.
  4. Does not become cold.

Answer:
4. Does not become cold.

Question 11.
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that

  1. Copper bottom makes the pan more durable
  2. Such pans appear colourful
  3. Copper is a better conductor of heat than the stainless steel
  4. Copper is easier to clean than the stainless steel.

Answer:
3. Copper is a better conductor of heat than the stainless steel

Extended Learning – Activities and Projects

Question 1.
Go to a doctor or your nearest health centre. Observe the doctor taking temperature of patients Enquire?

  1. Why she dips the thermometer in a liquid before use.
  2. Why the thermomter is kept under the tongue.
  3. Whether the body temperature can be measured by keeping the thermomter at some place other than the mouth.
  4. Whether the temperature of different parts of the body is the same or different. You can add more questions which come to your mind.

Answer:

  1. Because to prevent infection. This liquid is an antiseptic.
  2. Because the temperature below the tongue represents actual temperature of body.
  3. Yes, but not so desirable.
  4. Temperature of different parts of the body are different.

Question 2.
Go to a veterinary doctor (a doctor who treats animals)?
Discuss and find out the normal temperature of domesitc animals and birds.
Answer:
MP Board Class 7th Science Solutions Chapter 4 Heat img-11

Question 3.
Wrap a thin paper strip tightly around an iron rod. Try to burn the paper with candle while rotating the iron rod continuously. Does it burn? Explain your observation?
Answer:
No, the paper strip does not burn. Iron it a good conductor of heat. It takes away .the heat from paper and saves it from burning.

Question 4.
Take a sheet of paper. Draw a spiral on it as shown in the fig. Cut out the paper along the line. Suspend the paper as shown in figure, above a lighted candle. Observe what happens. Think of an explanation?
MP Board Class 7th Science Solutions Chapter 4 Heat img-12
Answer:
The paper spiral keeps moving. This is so because the air above the flame moves up due to convection.

MP Board Solutions

Question 5.
Take two similar transparent glass bottles having wide mouths. Put a few crystals of potassium permanganate or pour a few drops of ink in one bottle. Fill this bottle with hot water. Fill the other bottle with cold water. Cover the cold water bottle with a thick piece of paper such as a postcard. Press the postcard firmly with one hand and hold the bottle with the other hand. Invert the bottle and place it on top of the hot water bottle. Hold both the bottles firmly. Ask some other person to pull the postcard. Observe what happens. Explain.
Answer:
Do with the help of your subject teacher.

Heat Additional Important Questions

Objective Type Questions

Question 1.
Choose the correct alternative:

Question (i)
By which method heat transfer takes place in solids –
(a) Convection
(b) Conduction
(c) Radiation
(d) All three.
Answer:
(b) Conduction

Question (ii)
When can feel the hotness of some hot substance like electric iron from a little distance by which method?
(a) Convection
(b) Conduction
(c) Radiation
(d) All three methods.
Answer:
(c) Radiation

Question (iii)
By which method sun’s heat reaches to earth –
(a) Conduction
(b) Convection
(c) Radiation
(d) Conduction and convection.
Answer:
(c) Radiation

MP Board Solutions

Question (iv)
The handle of cooker is make up of bakelite because it is –
(a) Cheap
(b) Looks beautiful
(c) Bad conductor of heat
(d) Good conductor of heat.
Answer:
(c) Bad conductor of heat

Question (v)
By which of the following processes the water circulates in radiator of the bus engine and keeps the engine cool –
(a) Convection
(b) Radiation
(c) Conduction
(b) Conduction and radiation.
Answer:
(a) Convection

Question (vi)
Ice is kept in four boxes made of the following materials. If the same quantity of ice is kept for same time in the boxes, in which box the ice will melt least –
(a) Lead
(b) Wood
(c) Steel
(d) Thermocoal.
Answer:
(d) Thermocoal.

Question (vii)
In radiation, heat energy travel in –
(a) Curred lines
(b) Zig – zag lines
(c) Straight lines
(d) None of these.
Answer:
(c) Straight lines

Question (viii)
A thermos flask prevents loss or gain of heat by –
(a) Radiation only
(b) Conduction only
(c) Convection only
(d) None of these.
Answer:
(b) Conduction only

MP Board Solutions

Question 2.
Fill in the blanks:

  1. The measure of …………… energy is temperature.
  2. ……………. is the apparatus to measure temperature.
  3. The temperature at which a substance changes its state from solid to liquid is called its …………….
  4. In convection, water travels from …………. region to the ……………. region.
  5. The black bodies are good ………….. of heat.
  6. Water is a …………… conductor of heat.
  7. Transfer of energy between different part of a body is called ……………
  8. Shining bodies are poor ……………. of heat energy.
  9. Dark objects absorbs …………… heat then light coloured object.

Answer:

  1. Heat
  2. Thermometer
  3. Melting point
  4. Hotter, colder
  5. Absorber
  6. Bad
  7. Conduction
  8. Radiators
  9. More.

Which of the following statements are True (T) or False(F):

  1. Heat is a form of energy.
  2. Heat flows from a lower temperature to a higher temperature.
  3. The temperature of a healthy adult is 98.4°C.
  4. Iron is better conductor of heat than aluminium.
  5. The temperature at which a substance changes its state from solid to liquid is called its melting point.
  6. In thermometer highest points is 100°C.
  7. In thermometer’s the lowest point is 273°K Radiation of heat can take place without a medium. See
  8. breeze is the blowing of air from sea toward the land.
  9. Air is a good conductor of heat.

Answer:

  1. Ture (T)
  2. False (F)
  3. False (F)
  4. False (F)
  5. True (T)
  6. Ture (T)
  7. True (T)
  8. True (T)
  9. True (T)
  10. False (F).

Question 4.
Match the items in Column A with Column B:
MP Board Class 7th Science Solutions Chapter 4 Heat img-13
Answer:

(i) (d)
(ii) (a)
(iii) (b)
(iv) (c)

Heat Very Short Answer Type Questions

Question 1.
Define clinical thermometer?
Answer:
The thermometer that is used to measures our body temperature is called a clinical thermometer.

Question 2.
What is the range of a clinical thermometer?
Answer:
35°C to 42°C.

Question 3.
Why is range of a clinical thermometer is chosen to be 35°C to 42°C?
Answer:
The clinical thermometer is designed to measure the temperature of human body only. The temperature of human body normally does not go below 35°C or above 42°C. That is the reason why this thermometer has the range 35°C to 42°C.

MP Board Solutions

Question 4.
What is the use of kink in thermometer?
Answer:
Kink prevents mercury level from falling on its own.

Question 5.
Why dose the mercury not fall or rise in a clinical thermometer when taken out of the month?
Answer:
The kink prevents the mercury level from falling down.

Question 6.
Name two substances which contract on heating.
Answer:
Bismuth, Ice.

Question 7.
Which substances has the highest heat capacity?
Answer:
Water.

Question 8.
Which gets hotter soon, land or water?
Answer:
Land.

Question 9.
What is thermos flask?
Answer:
Thermos flask is a device in which heat losses due to conduction, convention and radiation are minimised.

Question 10.
How does the heat travel in air? In which direction does the smoke go?
Answer:
Heat moves in air by convection. The smoke moves in the upward direction.

Question 11.
How does the heat from the sun reaches?
Answer:
By radiation.

MP Board Solutions

Question 12.
Why are you advised to use an umbrella when you go out in the Sun?
Answer:
The umbrella protects us from heat rays of the Sun.

Question 13.
What is temperature?
Answer:
Temperature of an object is the degree of its hotnees. It tells us how hot or cold the object is.

Question 14.
Name the instrument we use to measure temperature.
Answer:
We use thermometers to measure the temperature.

Question 15.
Write the S.I. unit of heat?
Answer:
Joule.

Question 16.
Write the names of the methods of heat transfer?
Answer:
The names of methods of heat transfer are conduction, convection and radiation.

Question 17.
The iron nails from aluminium rods falls faster than from iron rod. What do you conclude from this statement?
Answer:
It means that aluminium is a better conductor of heat as compared to iron. So it passes heat much quickly to the iron nails and they fall down due to melting of wax.

Question 18.
Why in summer days does the fan give hot air first in a closed room when it is switched on?
Answer:
In a closed room the hot air remains at top because it is lighter. So when fan is turned on, it circulates the upper air first and it gives a current of hot air.

Question 19.
Why are the cooking utensile made up of metals?
Answer:
Cooking utensils are made up of metals as they are good conductor of heat. They transfer the heat to the food inside quickly and the food is cooked easily.

Question 20.
What are good conductors of heat? Give examples.
Answer:
Substances which allow the heat to pass through them are called good conductors of heat. Examples : all metal like iron, aluminium, copper and alloys like steel etc.

Question 21.
What are bad conductor of heat? Give examples.
Answer:
Substance which do not allow the heat to pass through them are called bad conductor of heat.
Examples: wood, paper, asbestos, rubber etc.

MP Board Solutions

Question 22.
Why do fire workers wear bright clothes?
Answer:
Fire worker wears bright clothes because bright clothes are good reflector of heat. They send back the heat falling on them. Thus fire workers do not catch fire and heat easily.

Question 23.
On a cold winter night, why do we feel colder when the sky clear than when it is cloudy?
Answer:
As clouds are bad conductor of heat, they do not allow the warm air around us to flow up. So heat remains near the ground and we feel warmer.

Question 24.
When does the conduction of heat stop in two bodies in contact?
Answer:
The conduction of heat stops in two bodies in contact when the two bodies attain equal temperature. That is the two bodies have no temperature difference.

Question 25.
How do you note the temperature of the body with thermometer?
Answer:
When bulb of thermometer comes in contact with our body. The mercury in the thin tube rises up. When the temperature of thermometer and body becomes equal, the level of the mercury does not rise further. This is the temperature of the body.

Heat Short Answer Type Questions

Question 1.
What is the difference between heat and temperature?
Answer:
Heat:

  1. Heat is a form of energy. It flows from a body at higher temperature to a body at lower temperature.
  2. Heat is measured in Joules or Calorie.

Temperature:

  1. Temperature is a measure of energy in the form of heat. Generally the temperature of a body increases when it is heated.
  2. Temperature is measured in Celcius.

Question 2.
On basis of what properties, mercury is used in thermometer?
Answer:
Mercury is used in thermometer because of the following properties:

  1. Thermal expansion is uniform in mercury.
  2. As it is shining silvery white, its thermal expansion is seen easily. This helps in noting the reading of thermometer easily.
  3. It does not stick to the surface of glass.
  4. Mercury does not freeze at 0°C because it’s freezing point is 39°C.

It does not boil at 100°C because it’s boiling point is 357°C. Hence, mercury has wide range of temperature between its freezing point and boiling point.

MP Board Solutions

Question 3.
Distinguish between conduction and convection.
Conduction:

  1. In conduction the molecules do not leave their position.
  2. It generally takes place in solid.

Convection:

  1. In convection the molecules of the substance actually move from hotter region to colder region.
  2. It generally takes place in gases and liquids.

Question 4.
Why should we wear dark coloured clothes in winter and light coloured clothes in summer?
Answer:
Bright clothes objects tend to reflect back the heat more, than to absorb the heat. Therefore, it is advisable to wear them in summer. On the other hand, dark coloured clothes have a greater tendency to absored and hence “retain” the heat. Hence they are worn in winter.

Question 5.
Why rise in temperature in two substances of equal quantity is not same even through equal amount of heat is given to them?
Answer:
The same quantity of heat supplied to the same amount of different substances, then the rise in teperature would not be same bacause the rise in temperature of the substance would depend on their specific heat. The temperaute of the substance which has less specific heat would rise more.

MP Board Solutions

Question 6.
What are the precautions to be observed while reading a clinical thermometer?
Answer:
Precautions to be observed while reading a clinical thermometer are:

  1. Thermometer should be washed before and after use, preferably with an antiseptic solution.
  2. Ensure that before use, the mercury level is below 35°C.
  3. Read the thermometer keeping the level of mercury along the line of sight.
  4. Handle the thermometer with care. If it hits against some hard object, it can break.
  5. Don’t hold the thermometer by the bulb while reading it.

Question 7.
What are the precautions to be observed while reading a laboratory thermometers?
Answer:
In addition to the precautions needed while reading a clinical thermometer, the laboratory thermometer

  1. Should be kept upright not tilted.
  2. Bulb should be surrounded from all sides by the substance of which the temperature is to be measured. The bulb should not touch the surface of the container.

Question 8.
Define mamixum – minimum thermometer.
Answer:
Different types of thermoters are used for different puroposes. The maximum and minimum temperatures of the previous day, reported in weather reports, are measured by a thermometer called the maximum – minimum thermometer.

Question 9.
Draw diagram of the laboratory thermometer. Mark the lower and upper fixed temperatures on a Celsius scale and indicate the values in Kelvin scale aslo.
Answer:
MP Board Class 7th Science Solutions Chapter 4 Heat img-14

Question 10
Name three different types of thermometers. Which of these is most sensitive?
Answer:
The three different types of thermometers are:

  1. Mercury thermometer
  2. Alcohol thermometer
  3. Gases thermometer.

Mercury thermometer is used to measure nominal temperature. Alcohol thermometer is used to measure very low temperature. The gaseous thermometer is the most sensitive of all, as the gases are very sensitive to the slightest temperature change. The gaseous thermometers are rarely used because of the difficulty they pose in handling.

MP Board Solutions

Question 11.
Define digital thermometers with diagram?
Answer:
There is a lot of concern over the use of mercury in thermometers. Mercury is a toxic substance and is very difficult to dispose of if a thermometer breaks. These days, digital thermometers are available which do not use mercury.
MP Board Class 7th Science Solutions Chapter 4 Heat img-15

Heat Long Answer Type Questions

Question 1.
Explain with experiment the method of heat transfer by radiation?
Answer:
To know that the amount of heat absorbed or radiated by a substance depends upon colour of a substance.

Required Material:
Two containers of same metal, two thermometer, black and white colour, two cardboard pieces.
MP Board Class 7th Science Solutions Chapter 4 Heat img-16
Procedure:

1. Colour the outer surface of one container with black and other with white.

2. Add equal quantity of tap water in both and insert thermometer by making a hole at the centre of card board as shown in picture.

3. Keep both containers for about 30 minutes under the sun. Then note down the temperature of both the containers.

4. Now add same quantity of hot water heated upto 50 to 60°C in both containers. Arrange the card board and thermometer properly and keep both of them is shadow for about 10 minutes. Then note down temperature of water from both containers.

Analysis:
MP Board Class 7th Science Solutions Chapter 4 Heat img-17
Position 1.
After keeping containers for 30 minutes under the sun, you will see that, there is more increase in temperature of water in black container in comparision with white one. It is because black or dark colours are good absorbers of heat while white (light) colour is not.

Position 2.
After keeping the containers for 10 minutes in shadow, you will see that water in black container has cooled more than the water in white container. It is because black or dark colours are good emitters of heat, while white (light) colours are not.

Conclusion:

  1. Black or dark colour are good absorbers or emitters of heat.
  2. White or light colurs are good reflectors of heat. It means they are not good absorbers or emitters of heat.
  3. The amount of heat emitted or absorbed by a substance depends upon colour of a substance.

MP Board Solutions

Question 2.
Write some facts which indicates that sun light reaches to us by method of radiation?
Answer:
Medium is required for transfer of heat by conduction and convection process. When you stand under the sun, you experience heat. Heat reaches upto us from the sun. It is necessary to know following facts:

1. Air is poor conductor of heat hence heat is not transfered by conduction method in air.

2. Sun’s heat does not reach upto us by convection process also. Beacuse, you know that, convection will start only after earth is heated.

3. There is vacuum between sun and errth i.e. there is no medium. Hence sun’s heat can not reach upto us by conduction or convection method because medium is required for both methods. It means that sun’s heat reached us by some other method called radiation.

Question 3.
How does the highest and lowest constant point of thermometer marked?
Answer:
Two constant points i.e., lowest and highest are required to be marked while graduating the thermometer.

The lowest constant point:
The thermometer bulb is kept in a melting ice as shown in figure. Mercury descends in tube and remains constant after some time. This point is marked. This is lowest constant point of thermometer.
MP Board Class 7th Science Solutions Chapter 4 Heat img-18
MP Board Class 7th Science Solutions Chapter 4 Heat img-19

Highest constant point:
The thermometer bulb is kept in vapour of pure boiling water. Mercury ascends in tube and remains constant after some time. This point is marked. This is the highest constant point of thermometer.

Celcius scale:
Lowest constant point (temperature of melting ice) is indicated by °C and highest constant point (temperature of boiling water) is indicated by 100°C in this scale. The length between these two point is divided into 100 equal parts. The value of each parts is 1°C.

Question 4.
How does sea breeze flow?
Answer:
Convection current has got an important role in change of seasons. Sea breeze is the best example of this principle. In fact during day time, seashore land gets hotter earlier than water. Air in contact with it, becomes hot and rises. (Density of hot air is less and hence it is lighter) and hence to take its place cold air above sea flows towards seashore. Because of it, during day time sea breeze flows.
MP Board Class 7th Science Solutions Chapter 4 Heat img-20

During night time, this process gets reversed. See water becomes cool later than seashore during night time. (As the specific heat capacity of water is more than the seashore land, it takes longer time to become hot and also takes longer time to become cool). Hence during night time, temperature of sea is more than seashore. As a result surface air of sea gets hotter and rises and air above seashore takes its place. In this way during night time cool air flows towards sea.

MP Board Solutions

Question 5.
What is thermometer? Describe its construction?
Answer:
A thermometer is a device which is used to measure temperature accurately. The two commonly used thermometers are clinical thermometer and laboratory thermometer. The clinical thermometer is used by doctors to measure the body temperature. The laboratory thermometer is used in laboratories to measure melting point and boiling points.

A thermometer consists of a very fine capillary glass tube attached to a bulb containing mercury. In laboratory  thermometer the mercury is at zero mark when placed in ice and is at hundred mark when placed in boiling water. Therefore, zero, mark is considered as lower fixed point and 100 mark is considered as upper fixed point (see fig.).
MP Board Class 7th Science Solutions Chapter 4 Heat img-21

Question 6.
Explain the structure or thermos flask with neat diagram?
Answer:
Thermos Flask was prepared first of all by Sir James Debar. It is used for storing cold or hot liquids for hours together. It is designed in such a way that heat transfer by conduction, convection and radiation should be minimum.
MP Board Class 7th Science Solutions Chapter 4 Heat img-22

MP Board Class 7th Science Solutions

MP Board Class 7th Sanskrit Solutions सुरभिः

MP Board Class 7th Sanskrit Solutions Guide Pdf Free Download संस्कृत सुरभिः are part of MP Board Class 7th Solutions. Here we have given Madhya Pradesh Syllabus MP Board Surbhi Sanskrit Book Class 7 Solutions Pdf.

MP Board Class 7th Sanskrit Book Solutions Surbhi

Here we have given MP Board Surbhi Samanya Sanskrit Book Class 7 Solutions Kaksha 7 (संस्कृत सामान्य सुरभिः कक्षा 7).

Surbhi Sanskrit Book Class 7 Solutions

पाठ का हिन्दी अनुवाद, शब्दार्थ एवं अभ्यास

MP Board Class 7th Sanskrit Model Question Paper (आदर्श प्रश्नपत्रम्)

We hope the given MP Board Class 7 Sanskrit Solutions Guide Pdf Free Download संस्कृत will help you. If you have any query regarding Madhya Pradesh Syllabus MP Board Class 7 Sanskrit Book Solutions Surbhi Pdf, drop a comment below and we will get back to you at the earliest.

MP Board Class 7th Social Science Solutions Chapter 18 Humidity and Rainfall

In this article, we will share MP Board Class 7th Social Science Solutions Chapter 18 Humidity and Rainfall Pdf, These solutions are solved subject experts from the latest edition books.

MP Board Class 7th Social Science Solutions Chapter 18 Humidity and Rainfall

MP Board Class 7th Social Science Chapter 18 Text Book Questions

Choose the correct alternatives from the following

Question 1.
Hail falls in the form of:
(a) Liquid
(b) Solid
(c) Elastic
(d) Gas
Answer:
(b) Solid

Question 2.
Cyclonic rains in the North western part of India occurs during:
(a) Summer Season
(b) Winter Season
(c) Spring Season
(d) Rainy Season
Answer:
(b) Winter Season

MP Board Solutions

Fill in the blanks:

  1. The process of changing of water into vapor is called …………..
  2. When water vapor again changes to liquid or solid state it is known as …………..
  3. The ……………. is an instruments to measure rainfall.

Answer:

  1. Evaporation
  2. condensation
  3. rain gauge

MP Board Class 7th Social Science Chapter 18 Short Answer the Questions

Question 1.
What are water vapors?
Answer:
When very small particles of water are converted to gaseous water molecules are called water vapor.

Question 2.
Why does evaporation increase and decrease?
Answer:
The change in temperature brings about a change in evaporation. The rate of evaporation is more when strong winds blow.

MP Board Solutions

Question 3.
Why are clouds formed?
Answer:
The vapor that rises up from the water bodies reaches high up in the sky and is converted into droplets due to cooling. These droplets get dense and form clouds. When the clouds contain less water droplets it appears white and as its density increases it appears black.

Question 4.
How do you understand by snowfall?
Answer:
The water vapors on reaching higher up in the sky is converted into ice particles due to very low temperature. These ice particles are called snow. When this snow falls on earth it is called snowfall.

Question 5.
What is cyclonic rain?
Answer:
When the hot and cold air meet, the hot air rises upwards and the cold air rushes to occupy the low-pressure area in the center. As a result there is circular movement which causes the whirling air in the center to rise upwards. This rising air cools down, condenses and brings rain. This type of rainfall is called cyclonic rainfall.

MP Board Class 7th Social Science Chapter 18 Long Answer Type Questions

Question 1.
What is condensation? what are its Various forms?
Answer:
The process in which water vapor in die atmosphere changes into minute dip pelts of water or ice crystals is called condensation. Its various forms are dew, frost, fog, smog and hails.

MP Board Solutions

Question 2.
How many types of rainfall are there? Explain with diagram.
Answer:
There are three types of rainfall. They are:

  1. Convectional rain
  2. Orographic rain
  3. Cyclonic rain

1. Convectional rain:
The vapors formed from water bodies due to strong heat rises up in the sky and are condensed due to low temperature there, and falls on the earth in the form of raindrops. This process is called convection. Since the rainfall occurs because of the above – mentioned process, it is called convectional rain. The diagram of convectional rain is given below.

MP Board Class 7th Social Science Solutions Chapter 18 Humidity and Rainfall-1
2. Orographic rain:
When a mountain range lies in the path of a Tain – bearing wind, it causes die wind to rise along its slope. As a result, it cools and gets saturated. Further cooling due to its ascent leads to rainfall. This is called orographic rain. The diagram of Orographic rain is given

MP Board Class 7th Social Science Solutions Chapter 18 Humidity and Rainfall-2
3. Cyclonic rain:
When die hot and cold air meet, the hot air rises upwards and the cold air rushes to occupy the low-pressure area in die center. As a result there is circular movement which causes the whirling air in the center to rise upwards. This rising air cools down, condenses and brings rain. This type of rainfall is called cyclonic rain.
The diagram of Cyclonic rain:

MP Board Class 7th Social Science Solutions Chapter 18 Humidity and Rainfall-3

Question 3.
Make a diagram of rain gauge:
Answer:

MP Board Class 7th Social Science Solutions Chapter 18 Humidity and Rainfall-4

Question 4.
What is humidity? What are the different forms of humidity?
Answer:
The word humidity’ is used to denote die amount of dampness in die atmosphere. In other words the amount of water vapor present in the air is called humidity.

The different forms of humidity:
1. Clouds:
Clouds are formed due to the condensation of water vapor. As the moist air is lifted upwards, it clings to the dust particles in the air to form clouds.

2. Fog:
Fog, as a kind of cloud, is found on or near die surface of the land or water bodies. It is formed by the cooling of the air below its dew point in die lower layers of atmosphere.

3. Rain:
As the clouds arc cooled in the cooler upper region of the atmosphere, the small droplets of water in it grow in size and can no longer float in the air. Falling of these droplets of water from the clouds is called rain.

4. Snowfall:
As condensation takes place at temperature below 0°C, the water-vapor in the atmosphere changes into millions of tiny crystals. Sometimes, they combine together to form flakes of snow. Coming down of these snowflakes to die ground from clouds is termed as snowfall.

5. Hail:
Hails are caused by the rapid ascent of moist air higher regions where temperature is far-below freezing-point This causes the raindrops to freeze. When the hailstones become so big and heavy that the air can no longer hold them, they fall from the cloud on the earth as hailstones.

6. Dew:
On a cold and clear nights moist air comes in contact with cold objects on the earth. The moisture in the air condenses into droplets of water. It is known as dew.

7. Frost:
Frozen dew is called frost In the case of frost, the dew point is or below freezing point 0° Celsius.

MP Board Class 7th General English Letter and Application Writing

In this article, we will share MP Board Class 7th English Solutions Letter and Application Writing Pdf, These solutions are solved subject experts from the latest edition books.

MP Board Class 7th General English Letter and Application Writing

Applications (प्रार्थना पत्र)

Question 1.
Write an application to your school principal for four days leave as you are going out of station.
Answer:
To
The Principal, Janta Junior School,
Gwalior

Sir,
Most respectfully I beg to say that I am a student fo class VII-B. I have to go to Delhi for attending my brother’s marriage. Kindly grant me leave for four days. I shall be highly obliged to you.
Thanking you,

Date : 19th August, 20…..

Yours obediently,
Mukul Jain Roll No. 7
Class VII-A

Question 2.
Write an application to your principal to take you on a picnic.
Answer:
To
The Principal,
Govt. Middle School,
Bhopal

Respected sir,
With due salutations and respect I beg to state that I am the monitor of class VII-A and on behalf of all the students of class VII, I request you to take us to a class picnic. We shall be highly obliged if you grant our request.

Thanking you,
Date : 10th October, 20…..

Yours obediently
Mehul Garg
Class VII-A

Question 3.
Write an application to your principal for two days sick leave.
Answer:
Το
The Principal,
V. J. Middle School, Guna

Sir,
I beg to say that I am suffering from fever since last night i.e., 4th October 20……. Therefore, I won’t be able to attend school. Kindly grant me leave for two days.
Thanking you,
Date : 5th October, 20 ………

Yours sincerely,
Ashutosh Tiwari
Class VII-B

MP Board Solutions

Letters
(पत्र)

Question 1.
Write a letter to your sister, asking her to come and visit you for the coming festival.
Answer:
22, Ashok Nagar,
Indore (West) M. P.
Oct. 11, 20……

My dear sister Anu,

I want to inform you that our parents have decided to celebrate ‘Deepawali’ here with our family. Our elder brother has agreed to reach by 13th of October. Therefore, I request you to come to us and pay a visit for the coming Deepawali on 17th October, 20….. Rest is O. K.

Thanking you,

Yours younger brother,
Mohan G

Question 2.
Write a letter to your friend telling him about the Sports Meet in your school.
Answer:
10, Raghava Pura,
Ram Nagar, Indore
10-2-20……

My dear Mahesh,
In the month of January, ‘Sports Meet’ Programme was held in my school. Different sports took place. Most attractive games were cricket and football. The players of school topped the list of winners of Gold medals. The D. M. was the chief guest. The function was over with a lecture of our Principal. Rest is O. K.

Waiting for your letter.

Yours
Mahendra

Question 3.
Write a letter to your father telling him how you enjoyed your school picnic.
Answer:
School Hostel
4, Rajpur (M.P.)
4 – 5 – 20…….

Respected Father,

The students of class VIII arranged picnic. We hired a bus and reached Government Park. We saw it for the first time. It is very beautiful and attractive. My friends read their poems and sang songs. We all had our lunch there. Then we played antakshari with our teachers. We really enjoyed a lot. Everything was 0. K.

Thanks,
Yours obedient son/daughter,
Mohan/Mohini
Class-VII

Question 4.
You are living in a village and write a letter to our friend to spend the summer vacation with you.
Answer:
Vill.–Sohanpura, Post-Awagarh
Distt. KATNI
January 11, 20…

Dear Harish,
Our school has closed for the summer vacation. Last night, we were talking of you. Father and mother asked me to invite you during the vacations. I needed no pressing as I long to have you in our midst. The rains have set in. The weather is pleasant. The mango trees are laden with sweet juicy fruits and when you come we will enjoy them to our heart’s content. I hope you will not disappoint me.

Very Sincerely yours,
Parishkrat

Question 5.
Write an application to the Principal of your school for full fee concession.
Answer:
The Principal,
H. S. Secondry School,
Gwalior.

Sir,
I am a poor student. My father’s monthly income is only Rs.5000/-. He cannot afford to pay my school fees. I beg to add that I came first at the last examination.

I request you to grant me full fee concession so that I may continue my studies.

Thanking you,

Your most obedient student.
Deepak Sharma
Class VII A
Date : 15 April 20…..

MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1

In this article, we will share MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1 Pdf, These solutions are solved subject experts from the latest edition books.

MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1

Question 1.
Following number line shows the temperature in degree Celsius (°C) at different places on a particular day.
MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1 1
(a) Observe this number line and write the temperature of the places marked on it.
(b) What is the temperature difference between the hottest and the coldest places among the above?
(c) What is the temperature difference between Lahulspiti and Srinagar?
(d) Can we say temperature of Srinagar and Shimla taken together is less than the temperature at Shimla? Is it also less than the temperature at Srinagar?
Solution:
(a) The temperature of the cities are as follows:
Lahulspiti: -8°C; Srinagar : – 2°C; Shimla : 5°C; Ooty : 14°C; Bangalore : 22°C

(b) Temperature at the hottest place,
i. e., Bangalore = 22°C
Temperature at the coldest place,
i. e., Lahulspiti = – 8°C.
∴ Temperature difference = 22° – (-8°C)
= 30°C

(c) Temperature at Lahulspiti = – 8°C;
Temperature at Srinagar = – 2°C
∴ Temperature difference = – 2°C – (-8°C)
= 6° C

(d) Temperature at Srinagar = -2°C;
Temperature at Shimla = 5°C
Temperature of Srinagar and Shimla taken together = – 2°C + 5°C = 3°C
Hence, the temperature of Srinagar and Shimla taken together is less than the temperature at Shimla but greater than the temperature at Srinagar.

MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1

Question 2.
In a quiz, positive marks are given for correct answers and negative marks are given for incorrect answers. If Jack’s scores in five successive rounds were 25, – 5, – 10, 15 and
Solution:
Total score of Jack at the end will be the sum of scores in five successive rounds.
∴ Jack’s total score at the end
= 25 – 5 – 10 + 15 + 10 = 35

Question 3.
At Srinagar temperature was – 5°C on Monday and then it dropped by 2°C on Tuesday. What was the temperature of Srinagar on Tuesday? On Wednesday, it rose by 4°C. What was the temperature on this day?
Solution:
Temperature on Monday = – 5°C
Temperature on Tuesday = Temperature on Monday – 2°C = -5°C – 2°C = – 7°C Temperature on Wednesday = Temperature on Tuesday + 4°C = – 7°C + 4°C = – 3°C

MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1

Question 4.
A plane is flying at the height of 5000 m above the sea level. At a particular point, it is exactly above a submarine floating 1200 m below the sea level. What is the vertical distance between them?
MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1 2
Height of plane = 5000 m
Depth of submarine = -1200 m
Distance between plane and submarine = 5000 – (-1200) = 5000 + 1200 = 6200 m

Question 5.
Mohan deposits ₹ 2,000 in his bank account and withdraws ₹ 1,642 from it, the next day. If withdrawal of amount from the account is represented by a negative integer, then how will you represent the amount deposited? Find the balance in Mohan’s account after the withdrawal.
Solution:
Since the amount withdrawn is represented by a negative integer, the amount deposited will be represented by a positive integer.
Amount deposited = ₹ 2000
Amount withdrawn = – ₹ 1642 Balance in Mohan’s account = Money deposited + Money withdrawn = 2000 + (-1642) = 2000 – 1642 = ₹ 358

MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1

Question 6.
Rita goes 20 km towards east from a point A to the point B. From B, she moves 30 km towards west along the same road. If the distance towards east is represented by a positive integer then, how will you represent the distance travelled towards west? By which integer will you represent her final position from A?
MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1 3
Solution:
Since, the distance towards east is represented by a positive integer, then the distance travelled towards west will be represented by a negative integer.
Distance travelled in east direction = 20 km
Distance travelled in west direction = – 30 km
Distance travelled from A = 20 + (-30)
= -10 km
Therefore, we will represent the distance travelled by Rita from point A by a negative integer, i.e., -10 km (i.e., Rita is now in west direction).

Question 7.
In a magic square each row, column and diagonal have the same sum. Check which of the following is a magic square.
MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1 4
Solution:
It can be observed that in square (i), every row and column add up to give 0. However, the sum of one of its diagonals is not 0.
As -4 – 2 = -6 ≠ 0,
Therefore,
(i) is not a magic square. Similarly, in square
(ii), each row, column, and diagonal add up to give – 9. Therefore,
(iii) is a magic square.

MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1

Question 8.
Verify a – (- b) = a + b for the following values of a and b.
(i) a = 21, b = 18
(ii) a = 118,b = 125
(iii) a = 75, b = 84
(iv) a = 28, b = 11
Solution:
(i) a = 21, b = 18; a + b = 21 + 18 = 39
a – (- b) = 21 – (-18) = 21 + 18 = 39

(ii) a = 118, b = 125;
a – (-b) = 118 – (-125) = 118 + 125 = 243
a + b = 118 + 125 = 243

(iii) a = 75,b = 84;
a – (-b) = 75- (-84) = 75 + 84 = 159
a + b = 75 + 84 = 159

(iv) a = 28, b = 11;
a – (-b) = 28 – (-11) = 28 + 11 = 39
a + b = 28 + 11 = 39

Question 9.
Use the sign of >, < or = in the box to make the statements true.
MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1 5
Solution:
MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1 6

MP Board Class 7th Maths Solutions Chapter 1 Integers Ex 1.1

Question 10.
A water tank has steps inside it. A monkey is sitting on the topmost step (i.e., the first step). The water level is at the ninth step.
(i) He jumps 3 steps down and then jumps back 2 steps up. In how many jumps will he reach the water level?
(ii) After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step?
(iii) If the number of steps moved down is represented by negative integers and the number of steps moved up by positive integers, represent his moves in part (i) and (ii) by completing the following;
(a) – 3 + 2 -… = – 8
(b) 4 – 2 + … = 8.
In (a) the sum (- 8) represents going down by eight steps. So, what will the sum 8 in (b) represent?
Solution:
Let the number of steps moved down be represented by positive integers and the number of steps moved up be represented by negative integers.
(i) Initially, the monkey was at the 1st step. The monkey will be at step:
After 1st jump =1 + 3 = 4
After 2nd jump = 4 + (-2) = 2
After 3rd jump = 2 + 3 = 5
After 4th jump = 5 + (-2) = 3
After 5th jump = 3 + 3 = 6
After 6th jump = 6 + (-2) = 4
After 7th jump = 4 + 3 = 7
After 8th jump = 7 + (-2) = 5
After 9th jump = 5 + 3 = 8
After 10th jump = 8 + (-2) = 6
After 11th jump = 6 + 3 = 9
Hence, the monkey will reach the water level after 11 jumps.

(ii) Initially, the monkey was at step = 9 The monkey will be at step:
After 1st jump = 9 + (- 4) = 5
After 2nd jump = 5 + 2 = 7
After 3rd jump = 7 + (- 4) = 3
After 4th jump = 3 + 2 = 5
After 5th jump = 5 + (- 4) = 1
Clearly, the monkey will reach back the top step after 5 jumps.

(iii) If number of steps moved down is represented by negative integers and number of steps moved up is represented by positive integers, then his moves will be as follows:

Moves in part (i)

(a) -3 + 2 – 3 + 2 – 3 + 2 – 3 + 2 – 3 + 2 – 3
= -8
Moves in part (ii)

(b) 4 – 2 + 4 – 2 + 4 = 8
Moves in (b) represents going up 8 steps.

MP Board Class 7th Hindi Sugam Bharti Solutions Chapter 16 नीति दशक

In this article, we will share MP Board Class 7th Hindi Solutions Chapter 16 नीति दशक Pdf, These solutions are solved subject experts from the latest edition books.

MP Board Class 7th Hindi Sugam Bharti Solutions Chapter 16 नीति दशक

MP Board Class 7th Hindi Sugam Bharti प्रश्न-अभ्यास

वस्तुनिष्ठ प्रश्न
प्रश्न 1.
(क) सही जोड़ियाँ बनाइए
1. डार-पात = (क) लाख विकाय
2. जहाँ पुष्प. = (ख) सम लाभ
3. जहाँ सजन = (ग) फल, फूल
4. गुण कूँ गाहक = (घ) तहँ प्रीति
5. समय लाभ = (ङ) तहँ वास
उत्तर
1. (ग), 2. (ङ), 3. (घ), 4. (क), 5. (ख)

MP Board Solutions

प्रश्न (ख)
दिए गए शब्दों में से उचित शब्द का चयन कर रिक्त स्थानों की पूर्ति कीजिए
1. कबीर ने ……………… को दूर न करने की सलाह दी है। (प्रशंसक निंदक)
2. जब तक ………………. नहीं होता तब तक मित्र नहीं बनते। (वित्त/चित्त)
3. रहिमन ……………….. अंबु बिन, रवि ताकर रिप होय। (अंबुद/अंबुज)
4. विचार पूर्वक कार्य करने से ………….. राजी रहते हैं। (निजलोक सर्वलोक)
उत्तर
1. निंदक
2. वित्त
3. अंबुज
4. सर्वलोक।

MP Board Class 7th Hindi Sugam Bharti अति लघु उत्तरीय प्रश्न

प्रश्न 2.
निम्नलिखित प्रश्नों के उत्तर एक-एक वाक्य में लिखिए

(क)
कवि ने अमोल किसे कहा है?
उत्तर
कवि ने बोली को अमोल कहा है।

(ख)
कबीर के अनुसार तन-मन को निर्मल कौन करता है?
उत्तर
सबका मान करने से तन-मन निर्मल हो जाता है।

(ग)
वृंद कवि के अनुसार प्रेम का वास कहाँ होता है?
उत्तर
कवि द्वंद के अनुसार प्रेम का वास प्रेमी के हृदय में होता है।

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(घ)
रहीम कवि ने अनुसार ऊख और प्रेम में गाँठ पड़ जाने से क्या होता है?
उत्तर
कवि ने अनुसार ऊख में गाँठ पड़ने से रस में कमी आती है जबकि प्रेम में गाँठ पड़ने से रस में कमी आती है जबकि प्रेम में गाँठ पड़ने पर प्रीत में कमी आती है।

(ङ)
बंद कवि ने सब लोगों के प्रसन्न रखने के लिए कौन-सा उपचार करने के लिए कहा है?
उत्तर
कवि के अनुसार कुछ भी निर्णय लेने से पहले सबकी सुननी चाहिए तथा स्वयं के और सबके विचारों से निष्कर्ष निकालना चाहिए।

MP Board Class 7th Hindi Sugam Bharti लघु उत्तरीय प्रश्न

प्रश्न 3.
निम्नलिखित प्रश्नों के उत्तर तीन से पाँच वाक्यों में लिखिए

(क)
कबीर ने तराजू में तौलने के लिए किसे और क्यों कहा है?
उत्तर
कबीर ने बोली को तौलने के लिए कहा है क्योंकि बोली से बने बनाए घर उजड़ भी सकते हैं और संवर भी सकते हैं इसलिए सोच समझ कर बोलना चाहिए।

(ख)
कवि ने किस गुण की कीमत कौड़ी के समान बताई है?
उत्तर
कवि ने उस गुण की कीमत कौड़ी के समान बताई जिसे कोई स्वीकार नहीं करता अर्थात जिस गुण से समाज व लोगों को कोई लाभ नहीं होता वह ना के बराबर होता है।

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(ग)
रहीम ने बबूल के पेड़ को क्यों खराब कहा है?
उत्तर
रहीम ने बबूल के पेड़ को इसलिए खराब कहा है क्योंकि उसमें कोई फल-फूल नहीं होते अर्थात जो व्यक्ति स्वयं स्वार्थी हो, यदि वह किसी को सीख दे तो वह अनर्थक लगता है।

(घ)
‘ससि सुकेस’ दोहे में किन-किन को एक समान बताया है?
उत्तर
‘ससि सुकेस’ दोहे में ससि, सुकेस, साहस, सलिल, मान तथा सनेह को एक समान कहा गया है क्योंकि ये सारे बढ़ने पर बढ़ते चले जाते है और घटने पर घटते चले जाते हैं।

(ङ)
वृंद कवि ने सज्जन और पुष्प की क्या विशेषाएँ बताई है?
उत्तर
जिस प्रकार पुष्प अपनी खुशबू और मनमोहकता से सबको सम्मोहित कर देता है उसी प्रकार एक सज्जन व्यक्ति समाज में अपने अच्छे और निस्वार्थ कार्यों से सबको आकर्षित करता है।

भाषा की बात

प्रश्न 4.
निम्नलिखित शब्दों के शुद्ध उच्चारण कीजिए
निर्मल, वित्त, अम्बुज, ऊख, प्रीति, स्नेह, सर्व
उत्तर
निर्मल, वित्त, अंबुज, ऊख, प्रीति, स्नेह, सर्व।

प्रश्न 5.
निम्नलिखित शब्दों की वर्तनी शुद्ध कीजिएआमोल, मित्तर, शसि, सजजन, गांठ, जहाँ, चतूर
उत्तर
शब्द = शुद्ध वर्तनी
आमोल = अमोल
मित्तर = मित्र
सजजन = सज्जन
गांठ = गाँठ
जहाँ = जहाँ
चतूर = चतुर

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प्रश्न 6.
निम्नलिखित शब्दों के दो-दो पर्यायवाची शब्द लिखिए
निर्मल, पुष्प, समय, पेड़
उत्तर
शब्द = पर्यायवाची शब्द
निर्मल = शुद्ध, स्वच्छ
पुष्प = फूल, कुसुम
समय = वक्त
पेड़ = तरु, वृक्ष

प्रश्न 7.
नीचे दिए गए शब्दों में से उपसर्ग छाँटिएअमोल, निर्मल, सुकेस, सजन, सुवास, अनादर, दुर्भावना
उत्तर
MP Board Class 7th Hindi Sugam Bharti Solutions Chapter 16 नीति दशक 1

प्रश्न 8.
निम्नलिखित शब्दों को पृथक-पृथक वाक्यों में प्रयोग कीजिए
तराजू, निंदक, मान, विचार, उपचार, वित्त
उत्तर
शब्द = वाक्य
तराजू = मनुष्य को स्वयं सद्भाव के तराजू में तोलना चाहिए।
निंदक = निंदक व्यक्ति की भी बुराई नहीं करनी चाहिए।
मान = बड़ों का मान करना चाहिए।
विचार = मनुष्य अपना विकास अच्छे विचारों के साथ करता है।
वित्त = आजकल जिसके पास वित्त होता है, सब उसके पीछे भागते हैं।

नीति दशक पाठ का परिचय

(कबीर)

प्रस्तुत पंक्तियों में कबीर के कुछ दोहों का वर्णन किया गया है जिनमें उन्होंने जीवन की कुछ सच्चाइयों से अवगत कराया है। उन्होंने कहा है कि व्यक्ति को बोलने से पहले सोचना चाहिए क्योंकि मुख से निकला प्रत्येक शब्द अमूल्य है। इसी प्रकार जब किसी गुण को सार्थकता मिलती है तब वह खूब फलता-फूलता है किंतु जब गुण का महत्त्व समाप्त हो जाता है तो वह कौड़ी के समान हो जाता है। निंदा करने वाले से निंदा नहीं करनी चाहिए बल्कि उसकी तरफ से मन निर्मल रखना चाहिए।

नीति दशक संदर्भ-प्रसंग सहित व्याख्या

1. बोली एक अमोल है, जो कोई बोले जानि।
हिये तराजू तौलि के, तब मुख बाहर आनि।।

शब्दार्थ – अमोल = अमूल्य; अमूल्य = अमूल्य, तौलि = तौलना; आनि = आना।

संदर्भ-प्रस्तुत दोहे की पंक्तियाँ हमारी पाठ्य-पुस्तक ‘सुगम भारती’ (हिंदी सामान्य) भाग-7 के पाठ-16 ‘नीति दशक’ से ली गई है। इसके रचचिता कबीर है।

प्रसंग-इसमें व्यक्ति की बोली के महत्त्व के बारे में बताया गया है।

व्याख्या
प्रस्तुत दोहे में कबीर ने कहा है कि बोली अमूल्य होती है। मुँह से निकला प्रत्येक बोल वही जानता है जो वह बोलता है। हमें सोच-समझकर और तौल कर कुछ बोलना चाहिए।

विशेष

  • दोहे की भाषा प्रवाहमय है।
  • बोली को महत्त्व दिया गया है।

MP Board Solutions

2. जब गुण कूँ गाहक मिले, तब गुण लाख बिकाइ।
जब गुण गाहक नहीं, तब कौड़ी बदले जाइ।

शब्दार्थ-गाहक = ग्राहक, ग्रहण करने वाला; कौड़ी = महत्त्वहीन।

संदर्भ-पूर्ववत्।

प्रसंग-इसमें गुण के महत्त्व को दर्शाया गया।

नीति दशक रहीम का परिचय

रहीम का जन्म सन् 1556 ई. में लाहौर में हुआ था। वे अकबर के संरक्षक बैराम खां के पत्र थे। उनका पूरा नाम अब्दुर्रहीम खानखाना था। अकबर के नौ रत्नों में वे भी एक थे। वे अकबर के प्रधान सेनापति, मंत्री और वीर योद्धा थे।

1. आप न काहू काम के, डार पात फल फूल ।
औरत को रोकत फिरे, रहिमन पेड़ बबूल।।

शब्दार्थ-रोकत-रोकना।

संदर्भ-प्रस्तुत दोहे की पंक्तियाँ हमारी पाठ्य-पुस्तक ‘सुगम-भारती’ (हिंदी सामान्य’) भाग-7 के पाठ-16 ‘नीति दशक’ से ली गई है। इसके रचयिता ‘रहीम’ हैं।

प्रसंग-इसमें उन लोगों के विषय में कहा गया है जो कपटी है।

व्याख्या-प्रस्तुत दोहे में रहीम ने उन लोगों के विषय में कहा है जो स्वयं कपटी और स्वार्थी हैं तथा सारे दिन पाप के कार्य करते हैं फिर भी दूसरों को गलत काम करने से रोकते हैं।

विशेष

  • भाषा सरल और प्रवाहमय है।
  • स्वार्थी लोगों द्वारा दी गई सीख को दर्शाया गया है।

MP Board Solutions

2. समय लाभ समय लाभ सम लाभ नहिं,
समय चूंकि सम चूक।
चतुरन चित रहिमन लगी,
समय चूंकि की हूक ॥

शब्दार्थ-वित्तत = धन, पूंजी।

संदर्भ-पूर्ववत्।

प्रसंग-इसमें चतुर व्यक्तित्व के बारे में कहा गया है।

व्याख्या-प्रस्तुत दोहे में रहीम ने कहा है कि जब व्यक्तिको लाभ का समय मिले या ईश्वर अवसर प्रदान करे तो उसे ग्रहण कर लेना चाहिए। एक बार समय निकलने पर अवसर भी हाथ से चला जाता है। एक चतुर और समझदार व्यक्ति अवसर को अपने हाथ में नहीं जाने देता।

विशेष

  • भाषा सरल और प्रवाहमय है।
  • समय की सार्थकता को प्रकट किया गया है।

3. जब लगि वित्त न आपुने, तब लगि मित्त न कोय।
रहिमन अंबुज अंबु बिन, रवि ताकर रिपु होय।।

शब्दार्थ-मित्त = मित्र; अंबुज = कमल; अंबु = पानी; रवि = सर्य; रिपु = शत्रु, दुश्मन।

संदर्भ-पूर्ववत् ।
प्रसंग-इसमें स्वार्थ के बारे में कहा गया है।

व्याख्या- प्रस्तुत दोहे में बताया गया है कि जब तक हमारे पास पैसा होता है तब तक हमारे पास मित्र होते हैं और उसके नहीं रहने पर मित्र भी चले जाते हैं। इसी | तरह बिना पानी के सूर्य भी कमल का दुश्मन बन जाता है।

विशेष

  • भाषा सरल और प्रवाहमय है
  • इसमें लालच के संदर्भ में कहा गया है।

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4. रहिमन खोजे ऊख में, जहाँ रसनि की खानि
जहाँ गाँठ तहं रस नहीं, यही प्रीति में हानि॥

शब्दार्थ-ऊख = गन्ना; रसनि = रस; खानिखान।

संदर्भ-पूर्ववत्
प्रसंग-इसमें प्रेम के मध्य ठीस को उजागर किया गया है।

व्याख्या-प्रस्तुत दोहे में रहीम ने गन्ने का उदाहरण लिया है कि जिस प्रकार गन्ने में रस भरा होता है और इससे आनंद भी मिलता है परंतु हमें उसकी गाँठों को नहीं भूलना चाहिए जिनमें रस नहीं होता उसी प्रकार अधिक प्रेम में भी गाँठ आ सकती है। .

विशेष

  • भाषा सरल और प्रवाहमय है।
  • इसमें सुख-दुख को दर्शाया गया है।

5. ससि सुकेस साहस सलिल मान सनेह रहीम।
बढ़त बढ़त बढ़ि जात है, घटत घटत घटि सीम।।

शब्दार्थ-ससि = चंद्रमा; सुकेस = बाल, सलिल = पानी, जल।

संदर्भ-पूर्ववत्।
प्रसंग-इसमें चंद्रमा, केस आदि के बढ़ने और घटने पर विचार किया गया है।

व्याख्या-प्रस्तुत दोहे में रहीम ने कहा है कि चंद्रमा, बाल, साहस, पानी, माम और प्रेम आदि जितनी तेजी से बढ़ते है उतनी तेजी से ही कम होते चले जाते हैं अर्थात जीवन में कुछ भी स्थिर नहीं है, सबकी नियती और चाल में अंतर आना स्वाभाविक है।

विशेष

  • निरतंरशीलता को दर्शाया गया है।
  • भाषा सरल एवं प्रवाहमय है।

MP Board Solutions

नीति दशक वृंद का परिचय

वृंद का पूरा नाम वृंदावन दास था। वे रीतिकाल के सुप्रसिद्ध कवि थे। उनका जन्म सन् 1643 ई. में मेड़ना नामक गाँव में हुआ था, जो जोधपुर, राजस्थान में है। उनका कार्यक्षेत्र बहुत विस्तृत था। वे अपने आश्रदयाताओं के साथ सदा यात्रा करते रहे। वे कृष्णगढ़ नरेश महाराज राजसिंह के गुरु थे। वे उनके साथ औरगजेब की फौज में ढाका तक गए थे।

1. जहाँ सहन तहं प्रीति है, प्रीति तहाँ सुख ठौर।
जहाँ पुष्प तहं वास है, जहाँ बास तहं मौर।।

शब्दार्थ-ठौर = स्थान; प्रीति = प्रेम; पुष्प = फूल।

संदर्भ-इस दोहे के रचयिता महाकवि वृंद हैं।
प्रसंग-इसमें प्रेम की सार्थकता के बारे में बताया गया है।

व्याख्या-प्रस्तुत दोहे में महाकवि वृंद प्रेम की सार्थकता को प्रकट करते हुए कहते हैं कि सच्चे प्रेम का सुख तभी प्राप्त होता है जब प्रेमी भी प्रेम में डूबा हो। जहाँ फूलों का वास होगा, वहीं मोर भी घूमेगा। अतः प्रेम अतुल्नीय है।

विशेष

  • भाषा सरल एवं प्रवाहमय है।
  • प्रेम को अतुल्नीय बताया गया है।

MP Board Solutions

2. सुनिए सबही की कही, करिए सहित विचार।
सर्व लोक राजी रहै, सो कीजे उपचार।।

शब्दार्थ-सर्वलोक = सभी लोग, सारा संसार; हिये = हृदय।

संदर्भ-पूर्ववत्।
प्रसंग-सब लोगों के सुनने पर बल दिया गया है।

व्याख्या-प्रस्तुत दोहे में कवि वृंद ने व्यक्ति विशेष से कहा है कि हमें कुछ भी निर्णय लेने से पहले सबकी राय सुननी चाहिए, तत्पश्चात विचार करना चाहिए। अंतत, ऐसा निर्णय लेना चाहिए, तत्पश्चात, विचार करना चाहिए। अंतत ऐसी निर्णय लेना चाहिए। जिसमें जिससे सभी संबंधित लोग एकमत हो। अर्थात हमें कोई भी कार्य जल्दबाजी में नहीं करना चाहिए।

विशेष

  • भाषा सरल एवं प्रवाहमय है।
  • इसमें कार्य की सार्थकता पर बल दिया गया है।

MP Board Class 7th Special English Solutions Chapter 13 Words, Words, Words

In this article, we will share MP Board Class 7th Special English Solutions Chapter 13 Words, Words, Words Pdf, These solutions are solved subject experts from the latest edition books.

MP Board Class 7th Special English Solutions Chapter 13 Words, Words, Words

Words, Words, Words Text Book Exercise

Read and Learn

MP Board Class 7th Special English Chapter 13 Words, Words, Words 1

MP Board Solutions

Comprehension

Answer the following Questions:

Question 1.
Who greeted Anand first?
Answer:
Ravi greeted Anand First.

Question 2.
How did Anand look?
Answer:
Anand looked very cross with himself.

Question 3.
What did Anand’s neighbour say to him?
Answer:
Anand’s neighbour said to him that his blood was boiling.

Question 4.
What did the neighbour really mean?
Answer:
The neighbour really meant that he was angry with himself.

Question 5.
What words and phrases did Anand fail to understand?
Answer:
The words and phrases which Anand failed to understand are = Cross, boiling of blood, get, novel.

MP Board Solutions

Word Power

A. Complete the word puzzle with the help of clues given:
MP Board Class 7th Special English Chapter 13 Words, Words, Words 2
Clues:
Across :
2. to state a problem
4. to welcome
7. a prize
8. a big and dangerous wild animal

Down :
1. to grow
3. a book with a long story
5. the red liquid that flows inside our body
6. To have the same opinion.
Answer:
MP Board Class 7th Special English Chapter 13 Words, Words, Words 3

B. Fill in, the blank spaces choosing the correct words from those given below:
(understand, curse, cross, greet, cultivate)

  1. As soon as we meet someone we should ………… him.
  2. One should …………… a river Carefully.
  3. Ravi could not …………. what the neighbour meant.
  4. The farmers work hard and ………….. crops.
  5. It is not good to ……….. others.

Answer:

  1. greet
  2. cross
  3. understand
  4. cultivate
  5. curse.

C. Match the words in Column (A) with their meanings given in Column (B)
MP Board Class 7th Special English Chapter 13 Words, Words, Words 4
Answer:
1. → (f)
2. → (k)
3. → (i)
4. → (j)
5. → (b)
6. → (c)
7. → (a)
8. → (e)
9. → (h)
10. → (g)
11. → (d)

MP Board Solutions

Grammar is Use

A. May is used in two ways –
to express possibility
to seek permission
Examples:
1. We may go tomorrow or the day after (possibility)
2. May I come in, sir? (permission)

Now read the following sentences and write in the whether the use of may in them shows possibility or permission:

  1. It may rain today.
  2. May I go to play cricket today?
  3. He may ask you some more questions.
  4. I may not be able to play.
  5. Sir, may I go home now?
  6. You may go to your teacher but I am sure he won’t allow you.
  7. he may not allow you to play in the team
  8. May I go to see a movie with my friends?

Answer:

  1. possibility
  2. permission
  3. possibility
  4. possibility
  5. permission
  6. possibility
  7. possibility
  8. permission.

B. Write ten meaningful sentences using this table:
MP Board Class 7th Special English Chapter 13 Words, Words, Words 5
Answer:

  1. It is a pity that he is late.
  2. It is certain that anybody can cultivate good habits.
  3. It is not surprising that he didn’t see me greeting him.
  4. It is true that a word can be used in different ways.
  5. It is possible that he is late.
  6. It is certain that he was angry.
  7. It is not true that Ravi gets novel ideas.
  8. It is not surprising that a word can be used in different ways.
  9. It is a pity that he didn’t see me.
  10. It is true that anybody can cultivate good habits.

C. Use a word as noun and verb in two separate sentences.
Example 1.
Cross : Cross is a symbol for Red Cross Society.
Cross : Cross the road only at the zebra crossing.

  1. people (n), people (v)
  2. reward (n), reward (v)
  3. curse (n), curse (v)
  4. boil (n), boil (v)

Answer:

  1. Why are so many people standing there?
    Our village in peopled by farmers.
  2. The principal gave me a reward.
    Honesty is rewarded sooner or later.
  3. Durvara’s curse did not going in vain.
    She cursed her neighbour in foul language.
  4. Don’t leave the tea on the boil for long.
    The water is boiling inside the kettle.

MP Board Solutions

Let’s Talk

Talk to your partner and get answers to these questions. Ask him/her to repeat the exercise.

Question 1.
Do you know how to use a dictionary?
Answer:
Yes, I know how to use a dictionary.

Question 2.
What do you normally use your dictionary for?
Answer:
I normally use the dictionary to know the meanings of the words.

Question 3.
What other things you can look for in a dictionary?
Answer:
We can also look for pronunciation, grammar and origin of the words in a dictionary. (pronunciation grammar, origin of the words)

Questions of the partner:

Question 1.
Do you know how to drive a scooter?
Answer:
Yes, I do.

Question 2.
Do you always go to school on your scooter?
Answer:
No, I go there on my scooter twice a week.

Question 3.
When did you buy a scooter?
Answer:
I bought it only last year.

Let’s Write

Write a message to your friend that as you didn’t attend the school today and you want him to send the homework for English given by the teacher.
Answer:
Do Yourself.

MP Board Solutions

Let’s Do It

Sit in pairs and pick up the new words from the lesson, arrange them in alphabetical order, see their meanings from the glossary.
Answer:
Class-room Activity

Words, Words, Words Word Meaning 

MP Board Class 7th Special English Chapter 13 Words, Words, Words 6

MP Board Class 7th Sanskrit Solutions Chapter 6 प्रयत्नो विधेयः

In this article, we will share MP Board Class 7th Sanskrit Solutions Chapter 6 प्रयत्नो विधेयः Pdf, These solutions are solved subject experts from the latest edition books.

MP Board Class 7th Sanskrit Solutions Surbhi Chapter 6 प्रयत्नो विधेयः

MP Board Class 7th Sanskrit Chapter 6 अभ्यासः

प्रश्न 1.
एक शब्द में उत्तर लिखो
(क) जनानां सद्बुद्धिवृद्धिः केन भवति? [मनुष्यों में सद्बुद्धि की वृद्धि किससे होती है?]
उत्तर:
प्रयत्नेन

(ख) प्रयत्नेन वीराः कान् लङ्घयन्ति? [प्रयत्न से वीर किनको लाँघ जाते हैं?]
उत्तर:
गिरीन्

(ग) प्रयत्नेन के वियत्युत्पतन्ति? [प्रयत्न से कौन आकाश में उड़ते हैं?]
उत्तर:
विज्ञाः

(घ) प्रयत्नेन के विश्वप्रियाः? [प्रयत्न से विश्व में कौन प्रिय हैं?]
उत्तर:
भारतीयाः

MP Board Solutions

(ङ) प्रयत्नादयोग्याः कीदृशाः भवन्ति? [प्रयत्न से अयोग्य कैसे हो जाते हैं?]
उत्तर:
योग्याः।

प्रश्न 2.
एक वाक्य में उत्तर लिखो
(क) प्रयत्नेन भारतीयाः कां गताः? [प्रयत्न करने से भारतीयों ने क्या प्राप्त किया?]
उत्तर:
प्रयत्नेन भारतीयाः ऋद्धिं गताः। [प्रयत्न करने से भारतीयों ने वैभव को प्राप्त किया।]

(ख) प्रयत्नात् कः मृदुत्वं प्रयाति? [कैसे प्रयत्न से कोमलता प्राप्त हो जाती है?]
उत्तर:
कठोरः प्रयत्नात् मृदुत्वं प्रयाति। [कठोर प्रयत्न से कोमलता प्राप्त हो जाती है।]

(ग) अस्माभिः कः विधेयः? [हम सबको क्या करना चाहिए?]
उत्तर:
अस्माभिः प्रयत्नो विधेयः। [हम सबको प्रयत्न करना चाहिए।]

(घ) प्रयत्नेन कुत्र जनानां जयः स्यात्? [प्रयत्न करने से मनुष्यों की कहाँ विजय होती है?]
उत्तर:
प्रयत्नेन युद्धे जनानां जयः स्यात्। [प्रयत्न करने से मनुष्यों की युद्ध में विजय होती है।]

(ङ) प्रयत्नेन भारतीयाः कां श्रिताः? [प्रयत्न करने से भारतीय किससे युक्त हो जाते हैं?]
उत्तर:
प्रयत्नेन भारतीयाः मुक्तिं श्रिताः। [प्रयत्न करने से भारतीय मुक्ति से युक्त हो जाते हैं]

MP Board Solutions

प्रश्न 3.
शुद्ध वाक्यों के समक्ष ‘आम्’ और अशुद्ध वाक्यों के समक्ष ‘न’ लिखो
(क) प्रयत्नेन भारतीयाः मुक्ताः न अभवन्।
(ख) धीराः परिश्रमेण समुद्रं तरन्ति।
(ग) वैज्ञानिकाः प्रयत्नेन आकाशे उड्डयन्ति
(घ) प्रयत्नेन वीराः गिरीन् न लङ्घयन्ति।
(ङ) प्रयत्नेन असाध्यं साध्यं भवति।
उत्तर:
(क) न
(ख) आम्
(ग) आम्
(घ) न
(ङ) आम्

प्रश्न 4.
उचित शब्दों से रिक्त स्थानों को भरो
(क) प्रयत्नेन …………. सिद्धिर्जनानाम्।
(ख) …………. धीराः समुद्रं तरन्ति।
(ग) प्रयत्नेन वीराः ………….।
(घ) प्रयत्नेन ………… भारतीयाः।
(ङ) कठोरः ……….. मृदुत्वं प्रयाति।
उत्तर:
(क) कार्येषु
(ख) प्रयत्नेन
(ग) गिरीन् लङ्घयन्ति
(घ) विश्वप्रियाः
(ङ) प्रयत्नात्।

प्रश्न 5.
उदाहरण के अनुसार अधोलिखित शब्दों को एकवचन में बदलो
(क) वीराः
(ख) धीराः
(ग) अयोग्याः
(घ) विश्वप्रियाः
(ङ) श्रिताः
(च) गिरीन्
(छ) कार्येषु।
उत्तर:
(क) वीरः
(ख) धीरः
(ग) अयोग्यः
(घ) विश्वप्रियः
(ङ) श्रितः
(च) गिरि
(छ) कार्ये।

MP Board Solutions

प्रश्न 6.
निम्नलिखित शब्दों के मूलशब्द, विभक्ति और वचन लिखो
(क) युद्धे
(ख) जनानाम्
(ग) प्रयत्नात्
(घ) जयः
(ङ) कठोरः
(च) विज्ञाः
(छ) गिरीन्।
उत्तर:
(क) युद्ध-सप्तमी-एकवचन
(ख) जनषष्ठी-बहुवचन
(ग) प्रयत्न-पंचमी-एकवचन
(घ) जयप्रथमा-एकवचन
(ङ) कठोर-प्रथमा-एकवचन
(च) विज्ञप्रथमा-बहुवचन
(छ) गिरि-द्वितीया-बहुवचन।

प्रश्न 7.
निम्नलिखित शब्दों के विलोम शब्द लिखो
(क) कठोरः
(ख) अयोग्याः
(ग) सद्बुद्धिः
(घ) धीराः
(ङ) विज्ञाः
(च) गताः।
उत्तर:
(क) मुदः
(ख) योग्याः
(ग) दुर्बुद्धिः
(घ) अधीराः
(ङ) अवज्ञिाः
(च) अगताः।।

प्रश्न 8.
निम्नलिखित शब्दों के समानार्थक शब्द लिखो-
(क) परिश्रमेण
(ख) मूर्खाः
(ग) पर्वतान्
(घ) युद्धे
(ङ) प्रयत्नः।
उत्तर:
(क) प्रयत्नेन
(ख) निर्बुद्धयः
(ग) गिरीन्
(घ) संग्रामे
(ङ) प्रयासः।

प्रश्न 9.
उदाहरण के अनुसार अन्वय की पूर्ति करो
(क) प्रयत्नेन ………. समुद्रं ………. , प्रयत्नेन वीराः ……… लङ्घयन्ति, ………. विज्ञाः वियति ……… , प्रयत्नः ………. , ……… विधेयः।
(ख) प्रयत्नेन जनानां ……. , सिद्धिः …….. जनानां …….. वृद्धि, प्रयत्नेन ……. युद्धे …….. स्यात्, …….. विधेयः, प्रयत्नः ……..।
उत्तर:
(क) धीरा, तरन्ति, गिरीन्, प्रयत्नेन, उत्पतन्ति, विधेयः, प्रयत्नः।
(ख) कार्येषु, प्रयत्नेन, सद्बुद्धिः, जनानां, जयः, प्रयत्नाः, विधेयः।

MP Board Solutions

प्रयत्नो विधेयः हिन्दी अनुवाद

रविः :
श्याम! एषा अतिगभीरा नदी। नद्याम् अपारं जलम् अस्ति मम च भ्राता मोहनः तरति।

श्यामः :
नद्यां मोहनः कथं तरति ? तरणं तु अतिकठिनम्। सः अपारे जले कथं न मज्जति?

रविः :
त्वम् उचितं वदसि यत् तरणम् अतिकठिनं, किन्तु मोहनः तरणस्य प्रयत्नं करोति अतः सः न मज्जति। प्रयत्ने कृते कठिनकार्याणि अपि सरलानि भवन्ति। यथा-

  • प्रयत्नेन एव महाभारतयुद्धे पाण्डवाः जयं प्राप्तवन्तः।
  • अस्माकं भारतदेशः प्रयत्नेन एव परतन्त्रतापाशात् मुक्तः।
  • प्रयत्नेन एव जनाः उत्तुङ्गपर्वतेषु अपि आरोहणं
  • कुर्वन्ति। – प्रयत्नेन एव छात्रः परीक्षायाम् अधिकान् अङ्कान् प्राप्नोति।
  • अतः अस्माभिः पुनः पुनः प्रयत्नः विधेयः। प्रत्यनेन जनाः किं-किं कुर्वन्ति अद्य वयं पाठे पठामः।

अनुवाद :
रवि-श्याम! यह नदी बहुत गहरी है। नदी में अपार जल है और मेरा भाई मोहन तैरता है।

श्याम :
नदी में मोहन कैसे तैरता है? तैरना तो बहुत कठिन है। वह अपार जल में क्यों नहीं डूबता है?

रवि :
तुम उचित कहते हो कि तैरना बहुत कठिन होता है। किन्तु मोहन तैरने का प्रयत्न करता है, अत: वह नहीं डूबता है। प्रयत्न करने पर कठिन कार्य भी सरल हो जाते हैं। जैसे-

  • प्रयत्न करने से ही महाभारत युद्ध में पाण्डवों ने विजय प्राप्त की।
  • हमारा भारत देश प्रयत्न करने से ही पराधीनता के बन्धन से मुक्त हुआ।
  • प्रयत्न से ही लोग ऊँचे पर्वतों पर भी चढ़ाई करते हैं।
  • प्रयत्न से ही छात्र परीक्षा में अधिक अंक प्राप्त करता हैं।
  • इसलिए हमें बार-बार प्रयत्न करना चाहिए। प्रयत्न करने से लोग क्या-क्या करते हैं-आज हम इस पाठ में पढ़ेंगे।

प्रयत्नेन कार्येषु सिद्धिर्जनानां,
प्रयत्नेन सद्बुद्धिवृद्धिर्जनानां।
प्रयत्नेन युद्धे जयः स्याज्जनानां,
प्रयत्नो विधेयः प्रयत्नो विधेयः॥१॥

अनुवाद :
मनुष्यों को प्रयत्न करने से कार्यों में सफलता मिलती है। प्रयत्न करने से मनुष्यों में सद्बुद्धि की वृद्धि होती है। प्रयत्न करने से मनुष्यों को युद्ध में विजय प्राप्त होती है। (इसलिए) प्रयत्न करना चाहिए, प्रयत्न करना चाहिए।

प्रयत्नेन धीराः समुद्रं तरन्ति,
प्रयत्नेन वीराः गिरीन् लङ्घयन्ति।
प्रयत्नेन विज्ञाः वियत्युत्पतन्ति,
प्रयत्नो विधेयः प्रयत्नो विधेयः॥२॥

अनुवाद :
प्रयत्न करने से धैर्यशाली व्यक्ति समुद्र को तैरकर पार कर जाते हैं। प्रयत्न करने से वीर पुरुष पर्वतों को भी लाँघ जाते हैं। प्रयत्नपूर्वक विशेष ज्ञान वाले व्यक्ति आकाश में उड़ते हैं। इसलिए प्रयत्न करना चाहिए, प्रयत्न करना चाहिए।

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कठोरः प्रयत्नात् मृदुत्वं प्रयाति,
प्रयत्नादसाध्यं भवत्येव साध्यम्।
प्रयत्नादयोग्याः सुयोग्या भवन्ति,
प्रयत्नो विधेयः प्रयत्नो विधेयः॥३॥

अनुवाद :
कठोर प्रयत्न करने से मनुष्य कोमलता को प्राप्त हो जाता है। प्रयत्न करने से असाध्य भी साध्य हो जाता है। प्रयत्न करने से अयोग्य व्यक्ति भी योग्य हो जाते हैं। इसलिए प्रयत्न करना चाहिए, प्रयत्न करना चाहिए।

प्रयत्नेन मुक्तिं श्रिताः भारतीयाः,
प्रयत्नेन ऋद्धिं गताः भारतीयाः।
प्रयत्लेन विश्वप्रियाः भारतीयाः,
प्रयत्नो विधेयः प्रयत्नो विधेयः॥४॥

अनुवाद :
प्रयत्न करने से भारतीय लोग मुक्ति से युक्त हो जाते हैं। प्रयत्न करने से भारतीयों ने ऋद्धि (वैभव) को प्राप्त किया। प्रयत्न करने से भारतीय विश्व में प्रिय बन गये। इसलिए प्रयत्न करना चाहिए, प्रयत्न करना चाहिए।

प्रयत्नो विधेयः शब्दाथा:

मज्जति = डूबता है। विधेयः = करना चाहिए। धीराः = धैर्यशाली लोग। विज्ञाः = बुद्धिमान लोग। वियति = आकाश में। मृदुत्वं = कोमलता। असाध्यम् = कठिन। सिद्धिम् = सम्पन्नता को। ऋद्धिम् = वैभव को। सद्बुद्धिवृद्धि = अच्छी बुद्धि की वृद्धि। लङ्घयन्ति = पार कर जाते हैं। उत्प्रतन्ति = उड़ते हैं। प्रयाति = प्राप्त हो जाता है। परतन्त्रतापाशात् = पराधीनता के बन्धन से। उत्तुङ्गपर्वतेषु = ऊँचे पर्वतों पर। स्यात् = होती है।