Which of the following aquifers require a low permeability zone above it or below it?

A. artesian aquifer
B. confined aquifer
C. perched aquifer
D. All of these


Answer: D

Environmental & Atmospheric Sciences

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In the R,S system, which of the following groups has lowest priority?

A) aldehyde B) carboxyl C) ketone D) primary alcohol

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Glacial valleys tend to have a "V" shape.

a. true b. false

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Coastal landform modifications are sometimes caused by a localized increase in the volume of water. The modification process is called ________

A) melting B) ocean currents C) stream outflow D) ice push E) wave action

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