The harmful chemical which is accumulating in human beings through food chain is :(a) benzene hexachloride (b) dichlorodiphenyltrichloroethane(c) chlorofluorocarbon (d) abscisic acid

Correct Answer: (b) dichlorodiphenyltrichloroethane

Explanation: The harmful pesticide that accumulates in the bodies of human beings through the food chain, through a process known as biomagnification, is dichlorodiphenyltrichloroethane (DDT).