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What is an unconfined aquifer?

User Gallop
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Answer: aquifer whose upper water surface (water table) is at atmospheric pressure,

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User Lakhan
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Answer:

Unconfined aquifers are those into which water seeps from the ground surface directly above the aquifer. Confined aquifers are those in which an impermeable dirt/rock layer exists that prevents water from seeping into the aquifer from the ground surface located directly above.

Step-by-step explanation:

User Eusataf
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