Which best describes the amount of Earth’s total water supply that is usable freshwater? A. less than 1% B. less than 25% C. greater than 50% D. greater than 75%
Question
Which best describes the amount of Earth’s total water supply that is usable freshwater? A. less than 1% B. less than 25% C. greater than 50% D. greater than 75%
Solution
The best answer is A. Less than 1% of Earth’s total water supply is usable freshwater. Most of the Earth's water is in the oceans, which is saltwater and not usable for many purposes without desalination. The rest is either trapped in glaciers or too polluted for use.
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