The current practice of geothermal power generation may not always provide a practical renewable energy source because ________
A) power plants have high maintenance costs
B) in many cases, the magma is used faster than it is recharged
C) in some cases, the heated groundwater is used much faster than it is recharged
D) in some instances, pollution emissions can be very high
E) geologically heated groundwater is unsuitable for these plants and must be purified first
C
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Anomalously rapid movement of glacial ice is termed ________
Fill in the blank(s) with correct word
Which of the following is true of acetyl coenzyme A?
A) This compound provides entry for fatty acids into the citric acid cycle. B) This compound provides entry for amino acids into the citric acid cycle. C) This compound provides entry for monosaccharides into the citric acid cycle. D) All of the above are true of acetyl coenzyme A.
Instruments called _______________ more accurately approximate stream flow by measuring water velocity at hundreds of locations based on the shift in sound frequencies due to moving particles
Fill in the blank with correct word.
Which of the following is not associated with beaches?
A) Gravel B) Cobbles C) Sand D) Clay E) Sediment