Using Figure 9.15 in your textbook, what is the ratio of cubic kilometers of water in ice to water in rock-forming minerals?
A) 27.5 million: 420 million
B) 420 million: 27.5 million
C) 420 million: 8.35 million
D) 1.35 billion: 420 million
Answer: A
Environmental & Atmospheric Sciences
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