Question

Major drawback of DDT as a pesticide is that [CBSE PMT 1994; AFMC 2002]
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

Answer 1

the correct answer is(d)

Answer 2

Major drawback of DDT as a pesticide that it is not easily and rapidly degraded in nature.

Option: D

Explanation:  

• DDT was very popular pesticides. However it is now not widely used. This is because it is not be degraded by the nature.  

• Whenever we spray DDT it passes on from the soil to the water. Such aquatic organisms consume the DDT.  

• It widely effects does aquatic organisms and also other organisms which feed on the primary aquatic organisms.  

• This leads to the thinning of the eggs of such organisms and results in their sterility.

• In addition to this DDT stays in its active form in the environment as long as 15 years.