WORLD CIVILIZATION

Detailed explanation-1: -Mainland Southeast Asia is drained by five major river systems, which from west to east are the Irrawaddy, Salween, Chao Phraya, Mekong, and Red rivers. The three largest systems-the Irrawaddy, Salween, and Mekong-have their origins in the Plateau of Tibet.

Detailed explanation-2: -For instance, Mainland Southeast Asia with its continuous but rugged and difficult terrain provided the basis for the early Cham, Khmer, and Mon civilizations.

Detailed explanation-3: -Asia is the birthplace of the world’s three ancient civilizations: ancient China, ancient India and Babylon. Each gave the world different architectural styles and global landmarks, such as the Great Wall of China, Taj Mahal of India, Angkor Wat of Cambodia and Burj Khalifa Tower of the United Arab Emirates.