CBSE Class 7 Social Science Natural Vegetation And Wild Life Worksheet

Natural Vegetation and Wild Life

Give answer to these questions in approximately 1-15 words:-

Q 1. What do you understand by natural vegetation?
Ans. Natural vegetation is the plants, trees and herbs that grow itself without the efforts of mankind.

Q 2. In how many types natural vegetation can be divided?
Ans. Natural vegetation can be divided into three major types:-
1. Forests 2. Grasslands 3. Desert shrubs

Q 3. Which are the goods we get from forests?
Ans. We get wood, bamboos, grass for paper making, resin, bark for leather colouring, medicinal plants and bushes from forests.

Q 4. How do the forest help us indirectly?
Ans. 1. Forests absorb carbon dioxide and release oxygen.
2. These help in rainfall and check the temperature rise.
3. These check floods and soil erosion.
4. These provide habitat to birds and animals.

Q 5. What will be the effect of deforestation?
Ans. 1. The amount of carbon dioxide will increase, it will result increase in temperature.
2. There will be more floods and soil erosion.
3. There will be less rainfall and the whole world would turn into desert.

Q 6. How man is disturbing the ecological balance?
Ans. Man is disturbing the ecological balance by cutting the forests for agriculture land. He is also hunting wild animals for the sake of meat and leather.
Answer the following questions in about 50-60 words:-

Q 7. Which are the forests that are economically useful? Explain.
Ans. The coniferous (conical) are the most important and precious forests. Soft wood of Chir, Fir and Spruce trees is used for paper making.

Q 8. Why the Monsoon forests are called the deciduous forests?
Ans. The monsoon forests are found in the regions where rain is mostly confined to one season. In autumn, when there is no rainfall, these trees shed their leaves. That is why these forests are called ‘deciduous forests’.

Q 9. Write about the Temperate Grasslands.
Ans. Temperate Grasslands are found in temperate zone. Because of low rainfall, the grass is not very high, but it is soft and densely grown. It is useful for animal grazing. These grasslands are called 'Steppes' in Eurasia, 'Prairies' in North America, 'Pampas' in South America and 'Veld' in South Africa.

Q 10. Write about the hot desert vegetation.
Ans. Due to high temperature and low rainfall, there is less vegetation in hot deserts. Only thorny shrubs, cactus, small herbs and grass grow in such deserts. The root of these plants are long and thick enough to secure water from the deep.

Q 11. Why is it necessary to conserve forests?
Ans. Forests fulfill our daily needs. These are used for wood, paper making, railway bogies, rayon etc. With the increase in population, the stress should be laid on the conservation of forests and planting new trees.

More Question

Fill in the blanks :

1. The growth of the Vegetation depends on ____________ and ____________.

2. ____________ trees are found in Coniferous Forests.

3. Tropical evergreen forest in Brazil is called the ____________ of the earth.

4. ____________ is one of the worlds largest snakes is found in the tropical rainforest.

5. The grasslands of Brazil is called ____________.

6. The type of natural vegetation found in polar region is ____________ vegetation.

7. ____________ grasslands are found in Venezula.

8. ____________ is a polar animal.

9. ____________ means pure or untouched in the Russian language.

10. ____________ grass land are found in East Africa.

Please refer to attached file for CBSE Class 7 Social Science Worksheet - Natural Vegetation And Wild Life