Multiple choice general knowledge

What percentage of the Earth is covered by water and what percentage of the Earth's water is readily available for humans to use

  1. 79% 1%

  2. 79% 2%

  3. 78% 3%

  4. 70% 30%

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

About 71% of Earth's surface is covered by water, and only about 1% is readily available freshwater for human use (most is saltwater or ice). Option A (79%, 1%) is approximately correct for available freshwater. This tests environmental science knowledge.