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OpenStudy (anonymous):
Assume that the average person consumes 100 liters of water per day (L−d^−1). A backyard pool may contain 13,000 gallons of water. How many swimming pools of this size could you fill up with the water required to sustain the world’s population for one year?
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OpenStudy (anonymous):
(100*365*7,000,000,000)/49210.4 This is assuming a global population of 7 billion
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