An artesian aquifer occurs where ________

A) a well is dug through layers of sand and gravel into the water table
B) a water?bearing porous layer of rock, sand, or gravel has accumulated groundwater over a long period of time
C) several aquifers have merged
D) a water?bearing layer is trapped between two layers that are less permeable
E) granite is overlain by a sandy substrate, allowing percolation into the aquifer


D

Environmental & Atmospheric Sciences

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Which city was transformed from a highly polluted city to one of the most sustainable and livable cities in the United States due to grassroots tenacity?

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In the antiviral drug vidarabine the sugar, arabinose, is in what form?

A) a-furanoside B) b-furanoside C) a-pyranoside D) b-pyranoside

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In this type of plate boundary the two plates can consist of ocean-ocean, ocean-continent, or continent-continent crust.

A. convergent B. divergent C. transverse D. strike-slip E. transform

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