What is water logging and salinity ? from Biology Environmental I

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 Multiple Choice QuestionsShort Answer Type

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45. What is water logging and salinity ?


Water logging and salinity are the problems that  come up when the irrigation is done without proper drainage of water. Improper drainage leads to water logging in the soil. It affects the crops and draws salts to the surface of soil. The salt get deposited as thin crust on the soil surface or  starts collecting at the roots of plants. This salinity is harmful to growth of crops and proves damaging to the agriculture.
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47. List any three laws passed by Indian government to control  pollution.

 

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 Multiple Choice QuestionsShort Answer Type

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