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for a human. the human supply water usage is 3%. ONLY 3 PERCENT IS DRINKABLE TO HUMANS

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Devon Smith

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1y ago
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10y ago

Over 70% of the earth is water which is called an ocean. 97.5% of that is known to be salt water leaving only 2.5% as fresh water. Most of the fresh water is frozen in Antarctica and Greenland.

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Q: How much of the world's fresh water is available for human use?
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