Define pollutant.  from Biology Environmental Issues
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    Environmental Issues

    Multiple Choice QuestionsShort 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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    Multiple Choice QuestionsLong Answer Type

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

     

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    Multiple Choice QuestionsShort Answer Type

    48. Define pollution. Compare the biodegradable and nonbiodegradable pollutants.
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    49. Define pollutant. 

    Pollutant  is the agent that brings about undesirable changes in the environment. Pollutants have adverse effect on the environment.
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    50. What is air pollution ? List various air pollutants.
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