Multiple choice

Which among the following is not a method of reducing air pollution?

  1. Using compressed natural gas

  2. Using catalytic converter

  3. Using leaded petrol

  4. Modifying automobile engines

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lead in petrol releases poisonous fumes and is said to be an air pollutant. Thus, unleaded petrol should be used as a fuel in automobiles.