Human use of groundwater has over time.
a. increased
b. decreased
c. decreased and then increased
d. remained the same

The correct answer is a. increased. This is because we've developed techniques to make it more and more useful and groundwaters now supply for more than 90% of water used in rural areas. They are also commonly used for irrigation and have been for millennia. It can easily be extracted thanks to modern technology.

I’m sorry i don’t know the answer

Answerepicenter;