Q. Drawback of DDT as pesticides is that
A) It is less effective than others
B) It becomes ineffective after some time
C) It is a nondegradable substance
D) It is very costly
Explanation
The correct answer is Option C: It is a nondegradable substance.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.