I-Air Pollution:
Pollution of air started when man discovered fire in ancient times. Yet it became a problem only after industrial and technological progress. Man started to use coal and petroleum, constructed factories and laboratories and also produced cars and various other means of transport. It is also due to the construction of atomic reactors for military and civilian purposes. Air pollution can be attributed to a number of substances such as : Particles in smog, sculpture dioxide, carbon monoxide, ozone, industrial pollutants and others.
5.Control Measures of Air Pollution
