Which of the following is a massive accumulation of calcium carbonate?
A) Granite
B) Tufa
C) Sinter
D) Travertine
E) Carbonic acid
Answer: D
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Which of the following factors usually increase downstream of channels?
a. Water velocity b. Stream discharge c. Channel size d. All of the above e. Both a and b
As cities in the United States grow, they are finding that the increased water demands are best addressed by addressing the water footprint, most often including
A) building more reservoirs. B) drilling more wells. C) building desalination plants. D) conservation measures.
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____________________ mammals Fill in the blank(s) with the appropriate word(s).