Management of our national resources,Our Environment

MANGEMENT OF OUR NATURAL RESOURCES
1. What is coliform? What does the presence of coliform in h2o indicate?
2. Why is the reuse of material better than recycling in saving environment?
3. What is ‘amrita Devi bishnoi’ national award?
4. What is Narmada bachao andolan?
5. What is sustainable development? Suggest any one method achieve it.
6. What is chipko movement?
7. What is Ganga action plan and when it was implemented?
8. What is water shed management?
9. What are the different techniques of water harvesting?
10. What are the uses of fossil fuels?
11. Industrialization is the main cause of deterioration of environment. Discuss?
12. ‘Economic growth and ecological conservation should go hand in hand’ explain why?
13. Explain the traditional water harvesting system with the help of suitable diagram. Write about the technique of water harvesting.
14. What is purpose of building a dam? Suggest any four alternatives to mega projects like dams. What are the three problem addressed against construction of dams?
15. Explain in details the three R’s in process of saving the environment.
16. enumerate the measures required to replenish ground water
17. How do the stake holders affect the conservation of forest & wildlife? Describe it in detail.
18. How did the participation of local people helped in the protection of sal forest in west Bengal?
19. How coal & petroleum aggravate the problem of global warming.
20. Name 4 modes of traditional water harvesting applied in different parts pf India.
21. state any 2 advantages of
a) constructing a dam on river
b) under ground water

OUR ENVIRONMENT

1. Why are man made material like plastic cant be degraded?
2. Name the organism that occupy the first trophic level in food chain.
3. what is biological magnification?
4. Why is grass considered as an ultimate source of flesh found on the bodies of the animals?
5. Why are food chains in nature made up of only 3-4 steps or trophic level?
6. Why are kulhads not being used in the trains now?
7. Which program was initiated to control CFC level in the atmosphere? What was its contribution?
8. What difference do you find in food habits of org belonging to the 1st &3rd trophic levels?
9. What are green house gases? What are their affects in environment?
10. What happens to infra red radiations as they pass through the atmosphere?
11. Draw a labeled diagram showing energy flow in an ecosystem.
12. What are differences b/w biodegradable & non biodegradable substances? Give 2 examples each?
13. What is ten percent law?
14. consider the following food chain
a. plants---->mice---->snakes----->hawks
b. plants---->mice---->hawks
If energy available at producer level in both the food chain is 100 J, in which case the hawk will get more energy and by how much. Justify your answer.
15. With the help of line diagram, show a single food chain in grassland.
16. Name the pigment that helps in conversion of light energy into chemical energy.
17. Mention any two effects of UV radiations on human &environment.
18. Why vegetarian food habits help us in getting more energy?
19. What are the 2 functions of an ecosystem?