Question
Which one of the following is not correct with regard to DDT?
Answer: Option A
:
A
Biomagnification is theprocess bywhich toxicsubstanceswhich cannot be metabolised by the body, startbecoming more and more concentrated at successive trophic levels. DDT was once, used extensively as a pesticide and was sprayed on crops to kill insects. However, it has beennoticed that through run off from fields, DDT enters streams and lakes, and enters the food chain of aquatic plants and animals. Because DDT is non-biodegradable, it keeps accumulating attoxic levels in living bodies.
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:
A
Biomagnification is theprocess bywhich toxicsubstanceswhich cannot be metabolised by the body, startbecoming more and more concentrated at successive trophic levels. DDT was once, used extensively as a pesticide and was sprayed on crops to kill insects. However, it has beennoticed that through run off from fields, DDT enters streams and lakes, and enters the food chain of aquatic plants and animals. Because DDT is non-biodegradable, it keeps accumulating attoxic levels in living bodies.
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