Which of the following insecticide causes disrupted calcium metabolism in birds that leads to fragile and thin egg shells in them?
A
BHC
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B
DDT
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C
Aldrin
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D
Malathion
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Solution
The correct option is B DDT DDT (dichloro diphenyl trichloro ethane) was one of the widespread insceticide used in western countries. it was soluble in fat rather than water. as a result it biomagnified up the food chain and disrupted calcium metabolism in birds,leads eggshells to be thin and fragile.