Question

20(h) Replace the following with a word or a phrase.

addition of harmful substances to the atmosphere

Answer 1

The addition of harmful substances to the atmosphere is termed Air Pollution.

Part 1: Air

• Air pollution is defined as any chemical, physical, or biological component that contaminates the indoor or outdoor environment and alters the inherent properties of the atmosphere.

Part 2: Methods to prevent air pollution:

1. Use of Public transportation
2. Turn off the lights when they are not in the use
3. Avoid the usage of crackers
4. Avoid the use of plastic bags etc.