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Computer Science 18 Online
OpenStudy (anonymous):

What percentage of the land on earth is usable, for living on, but not for agriculture/farming? b. What percentage of the land on earth can be used for agriculture/farming? c. What percentage of the earth's surface is covered by land? d. What percentage of the earth's surface is covered by water? (From Data Table on Work File) e. What percentage of land on the earth's surface is inhospitable lands.

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