Page 188 - Health, Population and Environment Education 9

10. “Solid wastes are increased due to bad activities of human beings.” Do you
agree? Give reasons.
11. Differentiate between:
a. Reduce and recycle
b. Aerobic and anaerobic method
c. Simple pit latrine and improved pit latrine
d. Improved pit latrine and modern concrete latrine
e. Biodegradable and non-biodegradable wastes
12. What is drainage? How can we manage drainage?
13. What is latrine? Why should people defecate and urinate only in latrines?

C. Write long answer to the following questions.
1. What are the human sources of pollution? Explain briefly.
2. What is air pollution? Explain briefly about its causes and effects.
3. What is water pollution? Explain briefly about its effects and control measures.
4. What is sound pollution? Explain briefly its effects and control measures.
5. What are the solid wastes? Explain briefly about their sources.
6. How are human beings responsible for various types of pollution in environment?
7. What are steps of solid wastes management? Explain briefly on collection of
wastes.
8. What is compost preparation? Explain briefly about its types.
9. What is simple pit latrine? Write its advantages and disadvantages.
10. Describe briefly about improved pit latrine.
11. Why is clean and healthy environment needed for healthy life? Explain
12. “Environment pollution is the internal change in available air, water, soil and
sound.” Justify this statement.

188 GREEN Environment Population and Health Education Book-9