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3,985,76,354 km
60
lots of it
If by land mass you mean the surface, then 99% is habitable.
22% of the Earth's land mass
No.
Approximately 47% of the land area in the United States is considered rural and sparsely populated. This includes vast areas like national parks, forests, and deserts that have very low population density.
Antarctica is about 10% of earth's land mass.
Approximately 96%
quarter of an acre
blach
Brazil isn't even close to having as much land mass as Africa.