A Profile of the World, 2016


Geography

Age: 4.55 billion years old.

Total area: 510.072 million sq km (196.940 million sq mi).

Land area: 148.94 million sq km (57.506 million sq mi).

Water area: 361.132 million sq km (139.434 million sq mi).

Coastline: 356,000 km (221,208 mi). Note: 70.9% of the world is water, 29.1% is land.

Land boundaries: 251,060 km (156,262.58 mi.), not counting shared boundaries twice.

Climate: Two large areas of polar climates are separated by two rather narrow temperate zones from a wide equatorial band of tropical to subtropical climates.

Terrain: Highest elevation is Mt. Everest at 8,850 m (29,035 ft) and lowest land depression is the Dead Sea at –411 m (–1,349 ft) below sea level. The greatest ocean depth is the Mariana Trench at –10,924 m (–35,840 ft) in the Pacific Ocean.

Land use: Arable land: 10.43%. Permanent crops: 1.15%. Other: 88.42%(2011 est.). Irrigated land: 3,096,621.45 sq k

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