Water Consumption from All Aquifers, on Average, Is Less Than

Water consumption from all aquifers, on average, is less than the amount of water returned to the aquifer by natural processes. Why should we worry about water use?

A) The average amount does not reflect that drier areas have a harder time refilling the aquifers.
B) Because the water returned is contaminated.
C) The average amount does not take into account the water consumed during photosynthesis to make carbohydrates.
D) Water is nothing to worry about.
E) none of the above