air around us

what is a air pollution?

• air pollution is polluting the land

• air pollution is pollution in air

• clean air

• odourful air

how to prevent air pollution

• to plant trees

• to use bicycles or public transport instead of using private vehicles.

• .all of the mentioned

• to share the seat in car or bike to other person or the friend who is coming or going to the same destination or place where we are going to go to

what is the main cause of air pollution

• none of the above

• fire

• vehicles

• planting trees

Look at the photo. This is an example of _____ pollution.

• water

• air

• land

Air is made up mostly of

• oxygen

• nitrogen

• carbon

• hydrogen gas

what is a water vapour

• sweat

• it is present in the air when it come with contact with cool surface rain comes

• no, idea

• condensation

which air supports burning

• nitrogen

• oxygen

• argon

• carbon di-oxide

which gases have 0.01%

• argon, ozone, carbon di-oxide and hydrogen

• nitrogen

• oxygen

• air pollution

what is air

• Air is found everywhere. We cannot see air, but we can feel it.

• Air in motion is called wind.

  Air occupies space.

  Air is present in water and soil.

• known as atmosphere.

• air is resent everywhere

The layer of air around the earth is known as ___________.

• oxygen

• atmosphere

• nitrogen

• ozone layer