How much water is there on earth
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3
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The total volume of water on Earth is estimated at 1.386 billion km³ (333 million cubic miles), with 97.5% being salt water and 2.5% being fresh water. Of the fresh water, only 0.3% is in liquid form on the surface.
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One estimate of global water distribution
Water source Water volume, in cubic miles Percent of total water
Oceans, Seas, & Bays 321,000,000 96.54
Ice caps, Glaciers, & Permanent Snow 5,773,000 1.74
Groundwater 5,614,000 1.69
Fresh 2,526,000 0.76
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