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A topographic map of Ngorongoro Crater in northern Tanzania, the world's largest inactive, intact, and unfilled volcanic caldera, which formed when an immense volcano erupted and collapsed on itself 2–3 million years ago. The floor of the caldera is 600 metres (2,000 ft) below its rim and covers more than 260 square kilometres (100 sq mi).
The United Nations geoscheme is a system which divides 248 countries and territories in the world into six continental regions, 22 geographical subregions, and two intermediary regions. [1] It was devised by the United Nations Statistics Division (UNSD) based on the M49 coding classification . [ 2 ]
From the late 18th century, some geographers started to regard North America and South America as two parts of the world, making five parts in total. Overall though, the fourfold division prevailed well into the 19th century. [111] Europeans discovered Australia in 1606, but for some time it was taken as part of Asia.
This is a list of countries and territories by the United Nations geoscheme, including 193 UN member states, two UN observer states (the Holy See [note 1] and the State of Palestine), two states in free association with New Zealand (the Cook Islands and Niue), and 49 non-sovereign dependencies or territories, as well as Western Sahara (a disputed territory whose sovereignty is contested) and ...
[20] [21] The World Factbook categorizes these islands as part of Antarctica rather than Oceania. [ 22 ] The French Crozet Islands , Île Amsterdam , Île Saint-Paul , and the Norwegian Bouvet Island are also located on the Antarctic continental plate, and are not often associated with other continents.
Excludes Niue (260 km 2), the Cook Islands (236 km 2) and Tokelau (12 km 2), as well as the Antarctic claim of Ross Dependency (450,000 km 2). Colorado: 269,601: State of the United States. Gabon: 267,668: Country in Africa. Western Sahara: 266,000: Country in Africa; largely occupied by Morocco, some territory administered by the Sahrawi Arab ...
1. Any large body of salt water surrounded in whole or in part by land. 2. Any large subdivision of the World Ocean. "The sea" is the colloquial term for the entire interconnected system of salty bodies of water, including oceans, that covers the Earth. sea lane. Also sea road, seaway, or shipping lane.
The division of Earth by the Equator and the prime meridian Map roughly depicting the Eastern and Western hemispheres. In geography and cartography, hemispheres of Earth are any division of the globe into two equal halves (hemispheres), typically divided into northern and southern halves by the Equator and into western and eastern halves by the Prime meridian.