There are various type of pollution in the world. The most 41 widespreal one is air pollution. it is caused mostly by factories which discharge smoke. This smoke pollutes the atmosphere 42 with dust and cinder which can cause various types of diseases like lung cancer, heart failure and sinus infection. 43 When inhaled, carbon monoxide from exhaust 44 pipes of vehicles is also very dangerous and can cause instant death if people inhale in 45 excessive amount.
Water pollution is the pollution that occurs in the rivers, seas, oceans, lakes and other waterways. Water pollution is normally caused by the 46 dumping of waste such as garbage and faeces. The marine life in these waters will be affected. Some sea creatures perish while others 47 store the toxic extracts of the poisonous wastes in their bodies. When human beings eat these creatures, they will 48 either fall ill or die. In Japan alone, every year, thousand of people suffer 49 from strange diseases due to mercury poisoning. Others lose their 50 capacity or meet their deaths.
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