16. What is deforestation?
17. Which among the following result in the formation of soil?
18. The resources that can be replaced by natural ecological cycle is called
19. Green revolution is associated with ..............................
20. Smog is a mixture of
21. Mulching helps in
22. The main energy source for the environment is ...........................
23. The amount of solar radiation reaching the surface of the earth is called
24. Pedology?
25. What are rodenticides?
26. Major consumer of wood from forest is ........................
27. Ozone layer is present in
28. Ozone Umbrella is located in which layer of atmosphere
29. The most harmful of ultraviolet radiations are
30. Moisture in the air is known as
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