Multiple choice

The percentage of salt water that exists on this planet?

  1. 55

  2. 75

  3. 97

  4. 100

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

Approximately 97 percent of Earth's water is found in the oceans as salt water. The remaining 3 percent is fresh water, much of which is locked in ice caps and glaciers.