Question

Pollution, man's greatest enemy (short para)

Answer 1

Pollution is when something is added to the environment that is harmful or poisonous to living things. Smoke in the air from factories is a type of pollution as it is bad for the lungs when breathed in. Sewage in drinking water is another type of pollution, as it can make people ill because it contains germs andviruses. People living next to a building site where there is too much noise can become sick as they cannot sleep orrelax. This is called noise pollution.Air pollution is caused by harmful gases such as carbon dioxide, sulphur dioxide,nitrogen dioxide carbon monoxide and very small particles of carbon. Most of the pollution is caused by factories, vehicles and livestock. Today air pollution has become dangerous to humans. Heavy air pollution may causebreathing problems such as asthma or other health problems.Increase in human activities has also polluted air. Water pollution is the presence of harmful materials in water, such assewage, dissolved metals, waste fromfarms and factories and crude oil spilled from shipwrecked tankers.