Steps taken by the Government of India to control air pollution include

Options

A. Compulsory mixing of `20%` ethyl alcohol with petrol and `20%` biodiesel with diesel
B. Compulsory PUC (pollution Under Control) certificating of petrol driven vehicles, which tests for carbon monoxide and hydrocarbons
C. permission to use only pure diesel with a maximum of 500 ppm sulphur mass fuel for vehicles
D. use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucks

Answer

D