According to this graph, which shows water balance for the Ogallala aquifer, which of the following statements are true?
A. As the aquifer dewaters, it expands, increasing the amount of pore space in which to store water.
B. More water is taken out of the aquifer than is gained from recharge.
C. Less water is taken out of the aquifer than is gained from recharge.
D. Springs and rivers take out more water than does pumping.
Answer: B
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