| Earth | |
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| # | category | area in km² [square kilometers] | proportions | |||
| 1 | Total surface area: | 510,065,600 | ||||
| 2 | • land area: | 148,330,000 | 29% | |||
| 3 | • marine area: | 361,740,000 | 71% | |||
| 4 | √ arable land area: | 15,000,000 | 10% | 3% | ||
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| The Earth is a rare planet. | ||||||
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| Arable land types | ||||||
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| Agricultural production of nations in tons of food produced annually. | ||||||
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