Definition
An aquifer is an underground layer of rock or sediment that holds groundwater. It's like a natural underground reservoir. Water can be extracted from aquifers using wells. Aquifers are essential sources of freshwater for drinking, irrigation, and industry. They are replenished by rainwater and snowmelt seeping into the ground. Protecting aquifers from pollution is crucial for maintaining water quality and supply. Overuse of aquifers can lead to depletion and land subsidence.