Correction for the size of The Land area of Earth
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How big is 770 square millimeters?
It's about 0.000000000000000005 times as big as The Land area of Earth
The size of The Land area of Earth is about 148,940,000,000,000,000,000.00000000000000000000000000 square millimeters.
The Earth has a land area of 148,940,000,000,000,000,000.00000000000000000000000000 square millimeters. Only an estimated one-eighth of this area — or 18,618,000,000,000,000,000.0000000000000000000000000 square millimeters — is inhabitable by humans, with uninhabitable terrain such as deserts and high mountains covering the rest.