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Marianas Trench (10.85 km)i

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Percent of Earth's Surface Area

FIGURE 1.3 Hypsographic curve of Earth surfaces today, which illustrates the percentage of the total area on our planet that is occupied at various land elevations and ocean depths relative to sea level. Note that the ocean accounts for more than two-thirds of the Earth's total area with an average depth of 3865 meters and a maximum depth that is deeper than the elevation of the highest mountain. Modified from Thurman (1978).

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