A: Biomagnification of DDT can enhance the de | vedclass

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(A) Biomagnification refers to the increase in concentration of toxic substances at successive trophic levels.$DDT$ accumulates in the bodies of birds

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Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) Biomagnification refers to the increase in concentration of toxic substances at successive trophic levels.$DDT$ accumulates in the bodies of birds and interferes with calcium metabolism.This interference leads to the thinning of eggshells,which causes them to break prematurely before the embryo is fully developed.Consequently,this leads to a decline in the bird population.Therefore,both the Assertion and the Reason are correct,and the Reason is the correct explanation of the Assertion.

$A$: Biomagnification of $DDT$ can enhance the decline in bird population.
$R$: $DDT$ causes thinning of eggshells and their premature breaking by disturbing calcium metabolism.

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$A$: Biomagnification of $DDT$ can enhance the decline in bird population.$R$: $DDT$ causes thinning of eggshells and their premature breaking by disturbing calcium metabolism.