Multiple choice

Approximately how much of Earth's water is fresh, drinkable water?

  1. 3%

  2. 15%

  3. 20%

  4. 28%

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Approximately 97% of Earth's water is salty ocean water. Only about 3% is freshwater, and most of that is locked up in glaciers and ice caps.