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Earth's circumference is the distance around Earth. Measured around the equator, it is 40,075.017 km (24,901.461 mi). Measured passing through the poles, the circumference is 40,007.863 km (24,859.734 mi). [1] Treating the Earth as a sphere, its circumference would be its single most important measurement. [2]
1:100,000 maps are divided into squares representing 1 km 2, each square on the map being one square centimetre in area and representing 1 km 2 on the surface of the Earth. For 1:50,000 maps, the grid lines are 2 cm apart. Each square on the map is 2 cm by 2 cm (4 cm 2) and represents 1 km 2 on the surface of the Earth.
The kilometre (SI symbol: km) is a unit of length in the metric system equal to 1 000 meters (10 3 m). To help compare different orders of magnitude, this section lists lengths between 1 kilometer and 10 kilometers (10 3 and 10 4 meters).
In 2019, 39 million km 2 (15 million sq mi) of Earth's land surface consisted of forest and woodlands, 12 million km 2 (4.6 million sq mi) was shrub and grassland, 40 million km 2 (15 million sq mi) were used for animal feed production and grazing, and 11 million km 2 (4.2 million sq mi) were cultivated as croplands. [271]
It includes all deserts above 50,000 km 2 (19,300 sq mi). Some of Earth's biggest non-polar deserts. Rank Name Type Image Area (km 2) Area (sq mi) ... 10: Great Basin ...
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10 21: 1 zetta square meter Z(m 2) 1 000 Gm 2: 10 22 11 000 Gm 2: Area swept by Mercury's orbit around the Sun 37 000 Gm 2: Area swept by Venus' orbit around the Sun 71 000 Gm 2: Area swept by Earth's orbit around the Sun 10 23 160 000 Gm 2: Area swept by Mars' orbit around the Sun 281 000 Gm 2: Surface area of a Dyson sphere with a radius of 1 ...
Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies, ranked by total area, including land and water.