How does a scrubber function ? from Biology Environmental Issues

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Environmental Issues

Short Answer Type

51. Write a note on working of electrostatic precipitator.

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52. How does a scrubber function ?

Scrubber. A scrubber can remove gases like sulphur dioxide. In a scrubber, the exhaust is passed through a spray of water or lime. Water dissolves gases and lime reacts with sulphur dioxide to form a precipitate of calcium sulphate or sulphite.

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53. Differentiate primary air pollutants and secondary air pollutants.

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54. What is photochemical smog ? How does smog affect biological world ?

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55. What is acid rain ? What are its effects on plants ?

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Long Answer Type

56. What measures do you suggest to control pollution from automobile exhaust ?

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Short Answer Type

57. Briefly explain noise pollution.

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Long Answer Type

58. List various measures for control of noise pollution.

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Short Answer Type

59. What is water pollution ?

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60.

Make a chart illustrating the kinds of water pollutants.

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