Assertion (A): Pollution affects the air we breathe, the water we drink and the soil in which we grow our crops.

Reason (R): A comprehensive set of preventive measures are required to check the growing menace of pollution.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

State two negative effects of vehicular emissions.

What is meant by carpooling?

Name any three modes of public transport used in India.