Asia is the largest and most populous continent or region, depending on the definition. It covers 8.7 percent of the Earth's total surface area, or 29.8 percent of its land area, and it contains more than 60 percent of the world's human population.
Asia is traditionally 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.
