Question

Air pollution in Delhi improved after CNG was introduced instead of diesel in public transport since CNG gives out less smoke. Introduction of the metro in Delhi is also expected to reduce pollution. How?

Answer 1

Air pollution in Delhi improved after CNG was introduced instead of diesel in public transport since CNG gives out less smoke. ... Ans : Metro in Delhi will reduce use of number of buses and other vehicles, thus help in the using of less fuels which cause pollution.

Answer 2

Because many people will use metro which will indirectly reduce the use of many vehicles as the people will use metro as there mean of transportation which will also reduce the pollution