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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. Its 4.7 billion people constitutes roughly 60% of the world's population.
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The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. 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. It shares the continental landmass of Eurasia with the continent of Europe, and the continental landmass of Afro-Eurasia with Africa and Europe.
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Map of the most populous part of Asia showing physical, political and population characteristics, as per 2018Īsia ( / ˈ eɪ ʒ ə, ˈ eɪ ʃ ə/ ( listen)) is Earth's largest and most populous continent, located primarily in the Eastern and Northern Hemispheres.
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