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8.Microbes in Human Welfare
normal
Major drawback of $DDT$ as a pesticide is that
A
Organisms at once develop resistance to it
B
It is significantly less effective than other pesticides
C
It's cost of production is high
D
It is not easily and rapidly degraded in nature
(AIPMT-1994)
Solution
(c)$DDT$ has a long residual effect.
Standard 12
Biology
