NITROGEN

OXYGEN

OTHER GASES

HIGH TEMPERATURE

LOW TEMPERATURE

Factories emitharmful gases into the air.

Forest firesfill the air with smokeand ashes.

Cars and othervehicles emit

large amounts of carbon dioxide.

Pollen from plantstravels in the air

and causes allergiesin many people.

Dust containingfertilisers and

pesticides can bepicked up and carried

by the wind.

Some householdproducts, like

insecticide sprays, contain chemicals that

can make you ill.

Recycling usedmaterials createsless air pollutionthan making new

ones.

Taking the bus or thetrain means fewercars on the road.

Using creams and liquids instead of

sprays.

Walk or ride yourbike to get where

you need to goinstead of going by

car.

Plant a tree in yourneighbourhood. Trees

turn carbon dioxideinto oxygen, which we

need to breathe.