There are 50 states in Asia, Russia is the largest one, followed by China and India; Asia is also the largest continent where about half of the total population of the Earth lives (over 2,5 billion between China and India alone). The continent's average altitude is 960 meters, the highest in the Globe, excluding Antarctica; there are also the highest mountain ranges, such as Himalaya (Everest) and Karakoram (K2).
Asia is a very complex continent with varied characteristics, also due to the enormous geographical extension; this is also reflected in the climate, which is typically polar in the north of Russia, up to equatorial in the southern part (Indonesia), passing from tropical monsoon areas (India, South-East) to warm (Arabian Peninsula) and cold (continental parts of Asia) temperate climates. The water basins are quite frequent and significant (the Caspian Sea is the largest lake in the world, Lake Baikal the one with the largest volume of water), as well as the presence of island areas.
Most populous city: Tokyo (9,733,000 inhab., 37,785,000 urban aggl.) Highest mountain: Everest 8,848 m (29,029 ft) Lowest point: Dead Sea -426 m (-1,398 ft) Longest river: Yangtze 6,300 km (3,915 mi) Largest lake: Caspian Sea 371,000 km² (143,244 sq mi) Largest island: Borneo 743,330 km² (287,001 sq mi)