Which of the following is a major advantage of CNG-operated vehicles?

Correct option is C

The correct answer is (c) Reduced air pollution levels
Explanation:
· CNG emits significantly less CO₂, NOx, SO₂, and particulate matter, making it one of the cleanest vehicle fuels.
· CNG engines operate more smoothly and produce less noise.
Information Booster:
· Delhi shifted buses, autos, and taxis to CNG in 2001 following Supreme Court orders to reduce smog.