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Water Pollution - PowerPoint PPT Presentation

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Water Pollution


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:2008
Avg rating:3.0/5.0
Date added: 29 November 2009
Slides: 18
Added by: Username withheld or not provided


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