Q. The cause of decline in the population of reptiles and birds is
A) DDT
B) Biofertilizer
C) Bioinsecticides
D) Sewage
Explanation
The reptiles and birds are mostly secondary or tertiary consumers. The concentration of DDT is increased in them. DDT is non-biodegradable pollutant, responsible for decline in the population of birds and reptiles.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.