Part of the world: the geography of the continents

The Entire surface of planet Earth consists of water areas of World ocean and land on mainland continents. Continents, according to total area is much inferior to the seas and oceans. Four oceans - Pacific, Arctic North, the Indian and the Atlantic - take about 71% of the planet's surface, and the area of the continents are, respectively, 29%. The land consists of extensive areas forming part of the world. There are six of them: Asia, Africa, America, Europe, Antarctica and Australia with Oceania. The first five parts of the world represent countries with a certain status, having demarcated, officially recognized border, have received international recognition. Part of the world Australia is complemented by the Pacific island state that independent status could be considered part of the world.

Part of the world are divided into continents or continents. America, as a part of the world is divided into two continents - North America and the South. Europe and Asia, on the contrary, in the continental United status appeared Eurasia. Africa is Africa, and still is, whether it is at least a part of the world, even the mainland. It's the same with Antarctica. But Australia is called a continent without the island of Oceania. Continents often do not include the island, although if you add up the area of all the Islands, you get an impressive figure. And besides, the island, big or small, is essentially part of the mainland.

Immediately after the division of the total land area of the Earth on the part of the world, we had a secondary separation is already part of the world on the continents. As a result, on the planet there are continents and parts of the world. The largest continent is Eurasia, which has an area of 55 million square kilometers. Then there is the African continent, 30 million In third place in North America, which has an area of 20 million sq km South America area slightly less than 18 million sq km Antarctica - 14 and Australia - 8.5 million square kilometers respectively. Besides the area, the continents differ in the height above sea level, according to this indicator, there is significant scatter. The highest continent on earth is Antarctica, at 2,200 metres above sea level, Asia is at 950 meters, Africa - 750, America - 650, Australia to Europe 340 and 300 metres above sea level.

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Asia the largest part of the world, it covers an area of over 43 million square kilometers. With the accession of Europe, Asia lost its status as the world has become a continent. In Asia there are several dozen countries with a population of more than 4 billion people. Asia includes almost all climatic zones, from Equatorial in the South to Arctic in the Northern zone. Together with Europe Asia forms the continent of Eurasia. The terrain of the mainland variety, along with the vast plains of Eurasia are huge mountain ranges, the Himalayas, Tien Shan and Pamir.

In contrast with the mountain elevations in Eurasia there is a deep depression. For example, the Dead sea, on the border of Israel with Jordan, is below sea level more than 400 meters. The Eurasian continent is a unique champion in a geographic area. Eurasia is the largest lake in the world - the Caspian, lake Baikal is a natural reservoir of fresh water, Everest - the highest mountain of the world, unsurpassed largest Peninsula of Arabia, the pole of cold Oymyakon and finally, the largest natural zone of the Earth - Siberia.