Identify the full form of $CNG$.

Acid rain is the secondary effect of

Which of the following pollutants can be removed by a scrubber?

For the control of air pollution in Delhi, all buses of Delhi were converted to run on $A$ by the end of $B$ as per the directives of the $C$. Complete the given statement by choosing appropriate options for $A-C$.

Carbon monoxide is a major pollutant of

In which year was the Air (Prevention and Control of Pollution) Act amended to include noise as air pollution?