Multiple choice

The oceans cover ………of the surface of the earth.

  1. 50%

  2. 60%

  3. 71%

  4. 80%

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

Approximately 71% of Earth's surface is covered by oceans, with the Pacific Ocean alone covering about 46% of water surface and 30% of Earth's total surface. The remaining 29% is land (continents and islands). This percentage is relatively stable over geological time scales.