Question

Define Aquifer.
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Answer 1

Answer:

(in geology) a layer of rock or soil that can take in and hold water

Answer 2

An aquifer is a body of rock and/or sediment that holds groundwater. ... There are two general types of aquifers: confined and unconfined. Confined aquifers have a layer of impenetrable rock or clay above them, while unconfined aquifers lie below a permeable layer of soil.

.....hope it's helpful :)