Environment

Pollution is the process of making the environment

•   Dirty

•      Happy

•       Clean

The substance which pollutes the environment is called the

•   Pollutant

• Environment

•    Air

The types of pollutions are

• all of these

• water pollution

• air pollution

• noise pollution

The Earth's atmosphere is made up of these gases

• all of these

• nitrogen

• oxygen

• carbon dioxide

Air pollution causes due to

• both (Smoke, Fire crackers)

• smoke

• fire crackers

• none of these

 Trees release the gas

• oxygen

• carbondioxide

• helium

• nitrogen

Air pollution causes

• global warming

• happiness

• population

• cold

When harmful substances are releases into the water bodies it is called

• water pollution

• noise pollution

• air pollution

• soil pollution

We need water for doing

• all of these

• bathing

• cooking

• drinking

Whenever we hear very loud noise it cause

• irritation

• comfort

• happiness

• all of these