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The top documents tagged [earths land total area]
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earths land total area
Total surface area of earth 5.1 10 14 m 2 Land 25% 1.3 10 14 m 2 13,000 Mha 11% 5,500 Mha (1 hm = 10 2 m; 1 ha = 1 hm 2 = 10 4 m 2 )
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