1. Air pollution (ô nhiễm không khí), Water pollution (ô nhiễm nguồn nước), Soil pollution (ô nhiễm đất), Noise pollution (ô nhiễm tiếng ồn), Vision pollution (ô nhiễm tầm nhìn).
2.
- Causes:
+ People throw rubbish to river, sea, lake....
+ Domestic waste, chemical waste
+ Oil tanker was sunk
+ ...
- Effects:
+ Water animals are died.
+ Water plants are died.
+ Effect to people's heath and people's live.
+...
3.
- Stop throwing rubbish to river, lake, sea,...
- Treatment of domestic and chemical wastes.
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