Air pollution
Air pollution is caused by many things the increasing number of cars on our roads growing cities the fast development of our economy industrialisation Air pollution, as we know it today, started with the Industrial Revolution in Europe in the 19th century. In the last few decades , it has become the major problem for our environment. Clean air is normally made up of nitrogen (76 %) , oxygen (22%) , carbon dioxide and a few other gases. When harmful elements get into the air they may cause health problems and can also damage the environment, buildings and soil . They make the ozone layer thinner and thinner and lead to the warming of the earth’s atmosphere and climate changes . Our modern life style has led to dirtier air over the years. Factories, vehicles of all kinds, the growing numbe...