Fourth Grade
Worksheets
Air Pollution
Air pollution affects the air we breathe. It is made up of harmful gases, droplets, and particles. These make the air quality poor. Air pollution can make it hard for some people to breathe. People with heart or lung diseases can have trouble breathing when there is a lot of pollution. Many things can cause air pollution. Some air pollution is caused by burning fossil fuels. Oil is used to make gasoline for cars. Cars and trucks produce a lot of air pollution. Coal can give off harmful gases when it's burned. Coal is burned to make electricity. Renewable resources are not as harmful to the air. Biomass fuels, such as wood, can .....
