Page 158 - Health, Population and Environment Education 9

4. What is air? Why is air called as the mixture of gases?
5. Explain briefly about the importance of air.
6. What is surface water? Explain briefly about the sources of water?

7. How is soil formed? Explain briefly about the land structure of geographical
regions of Nepal.

8. Why do we need forest?
9. What is wildlife? Why do we need to conserve it?
10. Differentiate between:

a. Renewable and non-renewable natural resources
b. Surface water and underground water
c. Tropical and sub-tropical forest
d. Temperate and alpine forest

e. Absolute and relative conservation
11. Write short notes on:
a. Mineral resources of Nepal

b. Principles of natural resources conservation
c. Caring of the earth
d. Earth and human beings
e. World Conservation Strategy

12. “The earth is a living planet.” Justify this statement.
13. What are the efforts made at local level for caring the earth?
14. Why do we need to prioritize perpetual natural resources?

15. Why are non-renewable natural resources vulnerable?

c. Write long answer to the following questions.

1. What are natural resources? Why do we need them?
2. What is water? Why is it very important in our life?
3. How are forests classified in Nepal? Explain briefly about its types.
4. What are the features of Earth that have made Earth as a living planet? Explain
briefly.
5. How can we care our Earth? Explain briefly.
6. What are the major programmes for caring the Earth?

158 GREEN Environment Population and Health Education Book-9