alleryOver long periods, how does the total mass of water on Earth behave?
AFairly constant
BRapidly growing
CSteadily vanishing
DDoubling every year
Answer & Solution
Correct answer: A. Fairly constant
1. Water only changes form and place in the cycle.
2. The total mass stays fairly constant over time.
3. It does not grow, vanish or double.
_Source: Wikipedia, Water cycle, lead section_
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