Assertion (A): The rapidly increasing number of vehicles on the roads is a big source of noise pollution.

Reason (R): Increasing traffic jams in congested areas lead to repeated hooting of horns by impatient drivers causing noise 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.

Assertion (A): Noise from construction sites is generally far worse than noise originating from factories.

Reason (R): Construction itself causes high noise emissions and the equipment used is inherently noisy.

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.

Construction sites are source of which pollution?

1. Noise due to construction equipment.
2. Air due to the particulate matter released.
3. Soil due to the excavation for the site.
4. Only (1) and (2).

Assertion (A): The excessive use of chemical fertilisers creates pollution.

Reason (R): The fertilisers are used to enrich the soil.

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.