How much of the world’s freshwater supply do antarctica’s ice caps contain?

Antarctica's ice caps contain more than 70% of the world's freshwater supply.

Explanation:

About 98% of the surface of the Antarctic continent is enveloped by the Antarctic ice cover, which has an average thickness of more than a mile. In fact, the region contains approximately 90% of the ice in the world and consequently 70% of the fresh water supplies of the planet. Moreover, if all the ice melted, it is estimated that the sea level would increase about 40 miles.

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answer; i believe that the correct answer is (c) arctic tundra;