Q. Air pollution is not caused by
A) Pollen grains
B) Hydroelectric power
C) Industries
D) Automobiles
Explanation
The correct answer is Option B: Hydroelectric power.
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.