Asia : continent of the eastern hemisphere north of the equator forming a single landmass with Europe (the conventional dividing line between Asia and Europe being the Ural Mountains and the main range of the Caucasus Mountains) and bordered by the Arctic Ocean to the north, the Pacific to the east, and the Indian Ocean to the south; has numerous large offshore islands, including Cyprus, Sri Lanka, Malay Archipelago, Taiwan, the Japanese chain, and Sakhalin area 17,139,445 square miles (44,391,162 square kilometers) — Webster
Asia is Earth’s largest and most populous continent, located primarily in the eastern and northern hemispheres and sharing the continental landmass of Eurasia with the continent of Europe and shares the continental landmass of Afro-Eurasia with both Europe and Africa. Asia covers an area of 44,579,000 square kilometres (17,212,000 sq mi), about 30% of Earth’s total land area and 8.7% of the Earth’s total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Asia is notable for not only its overall large size and population, but also dense and large settlements as well as vast barely populated regions within the continent of 4.4 billion people.
In general terms, Asia is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean and on the north by the Arctic Ocean. The western boundary with Europe is a historical and cultural construct, as there is no clear physical and geographical separation between them. The most commonly accepted boundaries place Asia to the east of the Suez Canal, the Ural River, and the Ural Mountains, and south of the Caucasus Mountains and the Caspian and Black Seas.
Given its size and diversity, the concept of Asia — a name dating back to classical antiquity—may actually have more to do with human geography than physical geography. Asia varies greatly across and within its regions with regard to ethnic groups, cultures, environments, economics, historical ties and government systems. It also has a mix of many different climates ranging from the equatorial south via the hot desert in the Middle East, temperate areas in the east and the continental centre to vast subarctic and polar areas in Siberia. — Wikipedia
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