Air Pollution

It is the mixture of gases that surround the earth.

• atmosphere

• exhaust

• lead

• the poles

It means not careful, awkward or ungraceful in movement.

• clumsy

• increase

• law

• melt

The pipe where the waste gas flows out.

• exhaust

• lead

• law

• the poles

To rise in quantity or frequency.

• law

• melt

• increase

• atmosphere

A rule that the society must follow.

• melt

• law

• exhaust

• increase

It is an element which is a poisonous dark grey metal.

• melt

• law

• lead

• lung disease

An illness or disorder in the lungs.

• law

• lead

• lung disease

• increase

Either of the two points at the most northern and most southern ends of the earth, around which the earth turns

• melt

• the poles

• atmosphere

• exhaust

To turn something solid into liquid or something soft.

• law

• lead

• melt

• exhaust

Which is NOT a way to reduce air pollution?

• Walk when it's convenient.

• Burn garbage.

• Don't smoke.

• Encourage others to recycle