sediments are being deposited. water is being polluted. rocks are being weathered. ground water is being depleted.
I gave my students this multiple choice question: Land subsidence (ground level dropping) is most likely an indication that

Only one answer is correct among these 4 choices:
- sediments are being deposited.
- water is being polluted.
- rocks are being weathered.
- ground water is being depleted.

Could you tell me which one is correct?

ground water is being depleted.