Q. Photochemical smog is caused by
A) CO
B) $CO_{2}$
C) $O_{3}$
D) $NO_{2}$
Explanation
The correct answer is Option D: $NO_{2}$.
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.