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Approximately 20% of Earth's surface is covered by tropical savanna, which is characterized by grasslands with scattered trees and shrubs. Tropical savannas are most commonly found in Africa, South America, Australia, and Asia.
About 71.1% of earths surface is covered by the ocean.
33% of the land surface of earth is covered by deserts.
About 71 percent of the Earth's surface is water-covered.
I think it is 75 % of the earths surface is covered by limestone
100
About 15% of Earth's surface is covered by the taiga biome! :)
15%
32.7%
205%
80%
The tundra covered about 8%of the world in 2008