Question

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.

Answer 1

The correct option is D It is not easily and rapidly degraded in nature.

DDT is highly persistent in the environment. The soil half-life for DDT is from 2 to 15 years and in an aquatic environment, is about 150 years. Due to slow degradation DDT causes air, soil and water pollution.