When air gets polluted with dust, smoke, motor vehicles, mills and factories etc. is called air pollution. We know that air is an important element of our environment. But it is a matter of great regret that it is being polluted day by day in different reasons. Causes of Air pollution: There are different kinds of reasons of air pollution. The causes of air pollution are described below. 1. Using poison in agriculture: In agricultural sectors, farmers often use insecticides, pesticides and fertilizers etc. These get mixed with air and causes air pollution. Besides, Ammonia is a very common by product from agriculture related activities and is one of the most hazardous gases in the atmosphere. ➢ Air Pollution-Paragraph 2. Burning of Fossil Fuels: Burning of fossil fuels like coal, petroleum and other factory combustibles is one the major causes of air pollution. Smoke emitting from vehicles like buses, trucks, jeeps, cars, trains, airplanes etc. causes air pollution. 3. Industrial smoke: In mills and factories, large amount of carbon monoxide, hydrocarbons, organic compounds, and chemicals is emitted that causes air pollution. It is true that mills and factories can be found at every corner of the world that cause a huge amount of harmful gases that are the major causes of air pollution. 4. Indoor activities: Different kinds of household activities like cleaning products, washing, painting etc. emit different kinds of toxic chemicals in the air and cause air pollution. Effects of Air pollution: There are different kinds of negative and harmful effects of air pollution. The effects of air pollution are described below.