Drinking water for about ____ of the U.S. population and ____ of the rural populations comes from groundwater.

Drinking water for about ____ of the U.S. population and ____ of the rural populations comes from groundwater.




a. 50%; 50%
b. 50%; 95%
c. 10%; 50%
d. 10%; 95%
e. 75%; 75%


Answer: B


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