You will learn about "Air Pollution" in this video. Cutting of trees is one of the major reasons of air pollution. Air also gets polluted due to the smoke released by many factories and industries. Burning of wood and fossil fuels is another reason of air pollution. Also, vehicles such as cars, buses, trucks etc. give out a lot of smoke that pollutes the air. Due to air pollution, human beings suffer from a number of diseases like asthma, bronchitis, cancer, skin diseases etc.