Put on a mask on hazy days

Take the bus instead of driving

Remove the limits on the amount of air pollutants that vehicles can produce

Increase the amount of electricity that we use

Air has mass

Air does not have a particular smell

Air does not have a particular taste

Air is made up of ONLY nitrogen, oxygen, and carbon dioxide

Carbon monoxide

Nitrogen

Sulfur dioxide

Dust particles

Acids weaken structures made of metal

Factories dump chemical waste into the river

Acids break down statues made of limestone

Burning fossil fuels release harmful gases into the air

Put on a mask

Go outdoors

Turn on the air-conditioner

Use an air purifier

Some people develop breathing problems

Vehicles produce more soot

Factories produce more carbon dioxide

The quality of soil changes

Soil becomes too acidic for plants to grow well

Some areas experience flooding

The population of marine animals decreases

Paints on vehicles wear off quickly

Carbon monoxide

Soot

Sulfur dioxide

Carbon dioxide

To clear the land for farming

To find water sources for their crops(plants)

To destroy plants that compete with their crops for carbon dioxide

To release carbon dioxide into the air for their crops to grow well

Some of them cannot cause haze

All of them are gases

They are released when we burn fossil fuels to produce electricity

They are released when hydroelectric power stations produce electricity

Air pollution affects only humans

Air pollution can affect humans

Vehicles fitted with filters can increase more air pollution

We can reduce air pollution by wearing masks

Nitrogen

Oxygen

Carbon dioxide

Dust particles

Nitrogen

Oxygen

Carbon dioxide

Water vapor

Taking a bus

Taking a taxi

Walking and cycling

Carpooling