Multiple choice general knowledge

Which one of the following ecosystems covers the largest area of the earth's surface?

  1. Desert Ecosystem

  2. Grassland Ecosystem

  3. Mountain Ecosystem

  4. Marine Ecosystem
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Marine ecosystems cover approximately 71% of Earth's surface, making them the largest ecosystem by area. Oceans and seas dominate the planet's surface area, far exceeding the coverage of deserts, grasslands, or mountain ecosystems which are confined to land areas that make up only 29% of Earth's surface.

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