What do you think of when you hear or read the word POLLUTION ?
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There are two types of water pollution : Point source pollution and nonpoint source pollution .
Point source pollution can be traced to one source . You can easily identify its source . You can point at sewage flowing from broken pipes or see waste materials coming from a factory . Laws have been passed to stop this type of pollution . In addition to paying fines for breaking the law , polluters must clean polluted water before it goes back into rivers .
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