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Environmental Issues

Short Answer Type

41. How is air pollution responsible for changing the ill-effects of ultraviolet radiation ?

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42. Write a note on Biological Oxygen Demand (B.O.D.).

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43. What is organic farming ?

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44. What is ‘terror of Bengal’ ?

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45. What is water logging and salinity ?

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46. List the consequences of deforestation.

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Long Answer Type

47. List any three laws passed by Indian government to control pollution.

Three laws passed by the Indian government to control pollution are:

1. The Environment (Protection) Act, 1986 which was passed to enforce to protect and improve the quality of our environment (air, water and soil).

2.The Water (Prevention and Control of Pollution) Act, 1974. This act deals with the preservation of water quality and the control of water pollution with a concern for the detrimental quality of water pollutants on human health and also on the biological world.

3. The Air (Prevention and Control of Pollution) Act, 1981. It deals with the preservation of air quality and the control of air pollution with a concern for the detrimental effects of air pollutants on human health and also on the biological world.

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