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Question

Spraying DDT on crops shall produce pollution of

A
Air and water
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B
Air and soil
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C
Crops and air
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D
Soil and water
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Solution

The correct option is C Soil and water
DDT (Dichlorodiphenyltrichloroethane) is agricultural insecticide to prevent crops from being damaged by weeds and insects. The property of DDT makes it insoluble in water and it does not decompose easily hence accumulating in soil increasing acidification of soil and damage of crops which when consumed cause a serious metabolic disorder. Its persistence in aquatic sediments is equally harmful to aquatic life and drinking water as it dissolves in fats and shows biomagnification.
Hence, the correct answer is 'Soil and water'.

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