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Chemistry 15 Online
OpenStudy (superhelp101):

Approximately how much of the world's freshwater supply comes from groundwater? 5% 10% 15% 20%

OpenStudy (superhelp101):

20% right?

OpenStudy (superhelp101):

@JFraser

OpenStudy (jfraser):

i have no idea, sorry

OpenStudy (anonymous):

It should be 30 from: http://www.eoearth.org/view/article/152861/

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