Use public transport instead of private vehicles.

Ans. 1. All the automobiles use fossil fuels. Burning of fossil fuels causes air pollution by gaseous pollutants as well as by particulates.

2. Toxic gases such as CO, CH4 , SO2 , etc. are emitted through automobile exhausts.

3. When each person uses private vehicles, the proportion of air pollution increases.

4. Instead, public transport can not only help to reduce air pollution but will also help to ease traffic jams.

5. Therefore, as a role of citizen in pollution control, public transport should be used instead of of private vehicles.