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Mina finds out that a company is pumping water from an aquifer near her home. What can Mina conclude about the water being pumped?
A) The water being pumped is under a lot of pressure and comes from a confined aquifer.
B) The water being pumped is under a lot of pressure and comes from an unconfined aquifer.
C) The water being pumped is at atmospheric pressure and comes from a confined aquifer.
D)The water being pumped is at atmospheric pressure and comes from an unconfined aquifer.
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GPT-5 mini
AI
D
An unconfined (water-table) aquifer is open to the atmosphere through the porous material above it, so its water is at atmospheric pressure — wells must be pumped to lift the water. A confined aquifer is trapped between impermeable layers and is under pressure (artesian), which can make water rise in a well without pumping.
An unconfined (water-table) aquifer is open to the atmosphere through the porous material above it, so its water is at atmospheric pressure — wells must be pumped to lift the water. A confined aquifer is trapped between impermeable layers and is under pressure (artesian), which can make water rise in a well without pumping.
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