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Water Pollution - PowerPoint PPT Presentation

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Title:

Water Pollution

Description:

The pollution mainly from domestic sewage, manure of chicken and pigs from farms ... Oil soaked on the feathers of the sea birds prevents oxygen them from flying. ... – PowerPoint PPT presentation

Number of Views:1765
Avg rating:3.0/5.0
Date added: 29 November 2009
Slides: 18
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