Asia

Asia is the world's biggest and most populous continent. It covers 8.6% of the Earth's total surface area (or 29.4% of its land area) and, with almost 4 billion people, it contains more than 60% of the world's present human population.

Chiefly in the eastern and northern hemispheres, Asia is conventionally defined as part of the landmass of Africa-Eurasia – with the western portion of the latter occupied by Europe – lying east of the Suez Canal, east of the Ural Mountains, and south of the Caucasus Mountains and the Caspian and Black Seas. It is surrounded to the east by the Pacific Ocean, to the south by the Indian Ocean, and to the north by the Arctic Ocean.
Given its size and diversity, Asia – a toponym dating back to classical antiquity – is more a cultural concept incorporating a number of regions and peoples than a homogeneous, physical entity.