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How many square miles of land on earth?

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"Ocean is the great body of water that covers more than 70 percent of the Earth's surface." The planet Earth is a planet of oceans. The total area of the Earth is approximately 510 million square kilometers and the oceans cover about 71 percent of the Earth's surface, which is about 360 million square kilometers. read more

There are 57,506,000 square miles of land surfaces in the world, including much that is uninhabitable by humans (Antarctica, arctic climes, swamps, mountains, and deserts). read more

"Surface Area: Land area, about 148,300,000 sq km, or about 30% of total surface area; water area, about 361,800,000 sq km, or about 70% of total surface area." 148,300,000 km 2 Science Desk Reference American Scientific. read more

The Earth's total surface area is nearly 197 million square miles. Approximately 71 percent of the Earth's surface area is covered in water, and the remaining 29 percent is land. The Earth's total land surface area is about 57 million square miles. read more

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