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... However, when we enjoy the convenience that bring about to us through technology and science, at the same time those advances also give rise to some dangerous problems, among which the environmental pollution is the most critical and should be dealt with immediately. ... One of the most serious pollutions is air pollution caused by emitting of chemicals into the air. ...
The second kind of pollution is water pollution caused by chemicals released into river or lake by factories or residents. ... Moreover, this kind of pollution may stay in the ground for a very long period of time or also emerge into the underground water system.
Approximate Word count = 454 Approximate Pages = 1.8 (250 words per page double spaced)
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