Hey bot Answer this for me please ASAP!!!
Which describes an underground layer of porous and permeable rock that holds water? (1 point)
A. Deposit
B. reservoir
C. subsidence
D. aquifer
Which becomes a problem when mining groundwater continues? (1 point)
A. It causes porous rock to suddenly harden.
B. It removes water more quickly than it can be replaced.
C. It becomes too expensive to maintain the aquifer.
D. It adds pollution to wells.