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Pollution Definition - PowerPoint PPT Presentation

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Pollution Definition


... (1980-edition) states that ' pollute, v.t.' means 'to make foul or unclean, esp. ... Webster's II (1994-edition) defines 'pollution, n.' as 'contamination of air, ... – PowerPoint PPT presentation

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Date added: 17 November 2009
Slides: 6
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