Ten characteristics of South Asia, Southeast Asia and West Asia.

South Asia: Himalayas, the highest mountain in the world; There is one of the most famous great plains in the world, the Great Plains of India; Deccan Plateau is the flattest plateau in the world. There is one of the most precipitation areas in the world (such as Kilapanche, India); There is one of the regions with less precipitation in the world (such as northwest Pakistan); South Asian subcontinent (or subcontinent for short) with certain geographical independence; There is the largest lava platform in the world in the northwest of Deccan Plateau. South Asia is one of the four cradles of world civilization. South Asia is the birthplace of Buddhism, Hinduism and other religions; South Asia has the most famous tourist attractions in the world (such as Maldives).

Southeast Asia: Southeast Asian countries are multi-ethnic countries; Southeast Asia has the largest number of overseas Chinese in the world. Southeast Asia is one of the regions with the most vitality and potential for economic development in the world today. The more developed countries in the world are Singapore, etc. There are Myanmar, Cambodia, Laos, East Timor and other countries with relatively backward world economy; There is the world-famous Straits of Malacca; In the northern part of Sombawa Island, east of Java Island in Indonesia, there is a Tambora volcano, which is the most violent volcanic eruption known to mankind at present. Southeast Asia is one of the densely populated areas in the world; Indonesia, the country with the largest number of islands in Southeast Asia; There are more earthquake zones in the world.

West Asia: There is the busiest canal in the world, Suez Canal; There is the largest peninsula in the world, Arabian Peninsula; Most parts of West Asia belong to plateau areas; West Asia is one of the driest regions in the world. West Asia has the most famous oil resources in the world; West Asia is the region with the fastest population growth after World War II. But West Asia is still one of the most sparsely populated areas in the world. West Asia is also the richest region per capita in the world; West Asia has the largest number of foreign workers in the world; West Asia is the junction of Asia, Europe and Africa, and it is also one of the birthplaces of ancient human civilization.