Savannas covered more than ________ of Earth's land surface before human intervention,but have been extensively modified by human-caused fire.

Name: Savannas covered more than ________ of Earth's land surface before human intervention,but have been extensively modified by human-caused fire.
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Question

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Savannas originally covered about 40 percent of Earth's land surface before human activities, such as fire management and land conversion, significantly altered them.

Savannas Covered More Than ________ of Earth's Land Surface Before