LEED Green Associate

Category - Water

The U.S. Geographical Survey estimates that the United States uses ___ gallons of water per day:
  1. 400 thousand
  2. 400 million
  3. 400 billion
  4. 400 trillion
Explanation
Answer: C - The U.S. Geographical Survey estimates that the United States uses 400 billion gallons of water per day, which is approximately 1,300 gallons per capita.
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