Answers

2015-11-19T12:20:30+05:30
As the technology developed.. Many industries have been established.. Due to this industries environment is being collapsed.. Many wastes like the industrial organic or inorganic waste is thrown into the nearby river Smoke , is released to the atmosphere.. Where it gets completely damaged
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2015-11-19T12:45:22+05:30
 organic waste 
 inorganic waste
chemical waste
biological waste
waste water which is used for cleaning

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