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
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Formation of ice crystals can occur with saturation at temperatures between:
A) 0 and 5 degrees C. B) 0 and -5 degrees C. C) -4 and -40 degrees C. D) -40 and -60 degrees C.
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?
A. Bakersfield, California B. St. Louis, Missouri C. Seattle, Washington D. Atlanta, Georgia E. Chattanooga, Tennessee
In the antiviral drug vidarabine the sugar, arabinose, is in what form?
A) a-furanoside B) b-furanoside C) a-pyranoside D) b-pyranoside
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