Multiple choice

Although 70% of Earth is covered in water, about how much of that is fresh water?

  1. 2.5 %

  2. 3.1 %

  3. 3.9 %

  4. 4.2 %

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

Only a very small fraction of Earth's total water is fresh water; the rest is saline water in the oceans.