Q.13 The major source of noise pollution, worldwide is due to

1. office equipment

2. transport system

3.sugar, textile, and paper industries

4. oil refineries and thermal power plants

Ans. (b) The major source of noise pollution worldwide is the transport system ie., transport vehicles (both public and private).

Whereas all machines (noise-producing) whether, agricultural or engine of the motor, vehicle, and machine employed in various industries like textile, printing, sugar, engineering, and agricultural implements are also sources of noise pollution.