Green Plumbing

Category - Caring for Our Water

How much water does Earth contain altogether?
  1. 82.2 quadrillion gallons
  2. 326.0 million cubic miles (mi3)
  3. 904.5 million cubic miles (mi3)
  4. 874.3 trillion gallons
Explanation
Answer: B-Earth contains about 326.0 million cubic miles of water. Each cubic mile is more than 1.1 trillion gallons. This includes all frozen, liquid, and gaseous water, both fresh and saline.
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