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Biology 18 Online
OpenStudy (anonymous):

how much of earth is covered in water

OpenStudy (anonymous):

71%

OpenStudy (anonymous):

approximately.

OpenStudy (britanyashton):

72%, 97% of that water is salty ocean water. Roughly 326 million cubic miles (1.332 billion cubic kilometers), according to a recent study from the U.S. Geological Survey. source: http://m.livescience.com/29673-how-much-water-on-earth.html

OpenStudy (anonymous):

About 70% is the most common answer.

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