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建立人际资源圈Air_Pollution
2013-11-13 来源: 类别: 更多范文
Air Pollution
What is air pollution'
Ill go out for a breath of fresh air is an often-heard phrase. But how many of us realize that this has become irrelevant in todays world, because the quality of air in our cities is anything but fresh.
Air pollution is a serious problem in our society these days. We come across it indoors, when people have been smoking, and outdoors, where motor vehicle exhaust pollutes the air. For years scientists have been warning us that polluted air is a hazard to our health. It seems these warning are not being taken acutely enough. The truth is that air pollution is growing worse, especially in compactly populated societies. We must for that reason take instantaneous action to progress the quality of air we breathe.
The moment you step out of the house and are on the road you can actually see the air getting polluted; a cloud of smoke from the exhaust of a bus, car, or a motor vehicle; smoke billowing from a factory chimney, flyash produced by thermal power plants, and speeding cars causing dust to rise from the roads. Natural occurrences
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