Q. Steps taken by the Government of India to control air pollution include:
A) compulsory PUC (Pollution Under Control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons.
B) permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles.
C) use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucks.
D) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.
Explanation
[Solution from source] PUC certification, which checks the emission of carbon monoxide and hydrocarbons from vehicles, is a compulsory measure in India. The other options overstate the rules: CNG was mandated for public transport in Delhi, not all buses and trucks nationwide, sulphur limits were lowered far below 500 ppm, and 20% blending was not compulsory. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.