Here is the presentation on ground water pollution.

Groundwater is located beneath the ground surface in spaces in soil . A unit of rock or an unconsolidated deposit is called an aquifier it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is water table. It from, and eventually flows to, the surface naturally; natural discharge often occurs at springs.. Groundwater is also often withdrawn for and by constructing and operating extraction wells.Mostof the distribution and movement of groundwater is hydrology also called groundwater
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