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(C) The phenomenon of biomagnification of $DDT$ (Dichlorodiphenyltrichloroethane) leads to its accumulation in the food chain.In birds,high concentrat

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$DDT$

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(C) The phenomenon of biomagnification of $DDT$ (Dichlorodiphenyltrichloroethane) leads to its accumulation in the food chain.In birds,high concentrations of $DDT$ interfere with calcium metabolism.This interference inhibits the enzyme calcium ATPase,which is essential for the deposition of calcium carbonate in the eggshell.As a result,the eggshells become thin and break prematurely,leading to a decline in bird populations.

Which of the following is responsible for the thinning of eggshells in birds?

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