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Marine Pollution
... are affected, which organisms are important? Do we save all the animals or just the ... 4) Avoid eating foods raised where endangered environments were destroyed (such as ...
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Water Pollution
Concise introduction to different types of water pollution, including water pollution causes and water pollution effects.....including drinking water, hard water, well water, pond water and swimming pool water discussion.....we should stop pollution of water....- Slides
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