geography

what is aquifer?

An aquifer is a subterranean (underground) store of groundwater within one (or many) strata of permeable rock. They usually naturally form over many years when precipitation infiltrates the soil and the percolates into bedrock. However, a common issue nowadays is overabstraction, where rates of water extraction exceed rates of natural replenishment, meaning a net loss of water store. Usually the result of intensive agriculture, such as the Ogallala aquifer used in agriculture in the Mid-West United States.

(edited 4 years ago)

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