Q. Which of the following gases cause pollution when present in the exhaust fumes of vehicles?

A) $CO_{2}$
B) CO
C) Water vapours
D) $C_{2}H_{6}$
Explanation

The correct answer is Option B: CO.

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.