Why do some communities inject treated wastewater into aquifers?
A) to recharge it artificially, since nature cannot keep up with urban demands
B) as a convenient place to dispose of water that is not suitable for other uses
C) for storage in a place that is not subject to as much evaporation as a reservoir
D) to prevent flooding due to too much wastewater above the surface
Answer: A
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A) warm front B) cold front C) stationary front D) occluded front
A geologist looks at a piece of rock from Yosemite National Park under a microscope and sees tiny crystals of olivine, pyroxene, and plagioclase feldspar. What process might have formed this rock?
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