Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area (or 30% of its land area) and with approximately 3.9 billion people, it hosts 60% of the world's current human population. During the 20th century Asia's population nearly quadrupled. Asia is generally defined as comprising the eastern four-fifths of Eurasia. It is located to the east of the Suez Canal and the Ural Mountains, and south of the Caucasus Mountains and the Caspian and Black Seas. It is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean and on the north by the Arctic Ocean. Asia differs very widely among and within its regions with regard to ethnic groups, cultures, environments, economics, historical ties and government systems. Area: about 49 700,000 km2 (19 189 277 mi2) it covers about 60 percent of Earth's total land area. Population: more than 4 billion human inhabitants (4,157 million), about 60 percent of the world's population. 1, 33 billion of these people live in China. Seven out of ten of the most populated countries are in Asia (2010).Highest Point: Mount Everest 8848m (29 028 ft) Nepal. Largest Lake: Caspian Sea (salt lake) 371 000 km2 (143 250 mi2), Zero Baykal, Lake Baikal 31 500 km2 in Siberia is the world's largest freshwater lake by volume. Longest River: Yangtze China, 6380 km
BOUNDARY the land mass of Asia is not the sum of the land masses of each of its regions, which have been defined independently of the whole. For example, the borders of Central Asia and the Middle East depend on who is defining them and for what purpose. These varying definitions are not generally reflected in the map of Asia as a whole; for example, Egypt is typically included in the Middle East, but not in Asia, even though the Middle East is a division of Asia. The demarcation between Asia and Africa is the isthmus of Suez and the Red Sea. The border with Europe starts with the coast of the eastern Mediterranean, even though Turkey in the Near East extends partly into the Aegean Islands and includes Istanbul on the European side of the Bosporus. On the north the boundary between the continents of Asia and Europe is commonly regarded as running through the Dardanelles, the Sea of Marmara, the Bosporus, the Black Sea, the Caucasus Mountains, the Caspian Sea, the Ural River to its source, and a long border generally following the eastern side of the Ural Mountains to the Kara Sea, Russia. The Arctic Ocean is the northern border. The Bering Straits divide Asia from North America. On the southeast of Asia are the Malaysian Peninsula , a vast nation among thousands of islands on the Sunda Shelf, large and small, inhabited and uninhabited. Australia nearby is a different continent. The Pacific islands northeast of Australia more remotely removed from Japan and Korea are Oceania rather than Asia. From Indonesia the border runs along the Indian Ocean to the Red Sea. Most of the islands in the Indian Ocean are Asian. Since the 18th century Asia has been divided into several subregions independently defined from Asia as a whole. There has been no historical consensus and there is not now any universal consensus on the use of these terms, just as there is none for the word "Asia." The areas defined by the United Nations Statistics Division are useful approximations made more fixed by arbitrary assessments of political circumstances, but they are not and cannot be presented as any sort of authority, past or present, on the exact meaning of either Asia or any of its subregions. The major subregions are as follows. Asia can be divided into 6 subcontinents -
* Central Asia – Kazakhstan Uzbekistan, Turkmenistan, Tajikistan and Kyrgyzstan. * East Asia – China, Japan, Mongolia, Taiwan, North and South Korea. * North Asia – Russia.
* India Subcontinent – India, Afghanistan, Bangladesh, Bhutan, Maldives, Nepal, Pakistan, Sri...
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