Final answer:
Three problems associated with overwithdrawal of groundwater are groundwater mining, saltwater intrusion, and land subsidence.
Step-by-step explanation:
Three problems associated with overwithdrawal of groundwater are groundwater mining, saltwater intrusion, and land subsidence. Groundwater mining refers to the significant drop in the water table caused by the pumping of water wells, which can lead to the depletion of regional water tables and the need to drill deeper and more expensive wells. Saltwater intrusion occurs when overpumping of fresh water near coastlines allows saltwater to enter the aquifers, making them unusable. Land subsidence is a problem that occurs when a drop in the water table causes the land surface to sink gradually over a large area or rapidly in small areas.