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What is the extensive underground layer of permeable rock or sediment that stores and supplies groundwater to natural wells called?

Answer and explanation

Correct answer: Aquifer

The correct answer is B: an aquifer. An aquifer is a body of permeable rock, gravel, sand, or other sediment whose connected pores and spaces can store and transmit groundwater. Rainwater may enter the soil, move downward through infiltration and percolation, and collect in such underground formations. Wells are dug or drilled into suitable aquifers so that groundwater can be withdrawn. A is not correct because an impermeable layer restricts water movement; its material name also does not define a groundwater store. C is a deposit left by a glacier and is not the general name for a water-bearing layer. D refers only to a surface material and does not necessarily store or transmit usable groundwater. Memory cue: “aqua” means water, so an aquifer is a water-bearing underground formation, not simply any underground rock.

Related tags

AquiferGroundwaterWellsInfiltrationHydrological CycleThe Living WorldBiologyClass 11 Mcq

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