The major causes of air pollution include (a) burning of coal and petroleum (b) afforestation (c) deforestation (d) recycling of paper
Air pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes and wildfires. The solid and liquid particles suspended in our air are called aerosols.
