What is an Aquifer?
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology.
An aquifer is a body of saturated rock through which water can easily move.
Is an Aquifer an Underground River?