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One of the biggest problems is water contamination from highways, factories, homes, agricultural fields, and septic systems.

User Rohit Jagtap
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1 Answer

19 votes
19 votes

Answer:

1)Industrial Waste. Industries and industrial sites across the world are a major contributor to water pollution. ...

2)Marine Dumping. ...

3)Sewage and Wastewater. ...

4)Oil Leaks and Spills. ...

5)Agriculture. ...

6)Global Warming. ...

7)Radioactive Waste.

User Chris Richner
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3.0k points