A) it becomes ineffective after sometime.
B) it is less effective than others.
C) it is not easily/rapidly degraded in nature.
D) its high cost.
Correct Answer: C
Solution :
[c] In 1962, American biologist, Rachel Carson published the book Silent Spring, which alleged that DDT causes cancer and harmed bird reproduction by thinning egg shells. This followed the principles of biological magnification, killing higher level organisms like the birds. DDT is a persistent organic pollutant with a reported half-life of between 2-15 years, and is immobile in most soils.
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