Name the fertile river valleys of Asia.

The fertile river valleys of Asia are-

1. The Valley of Mesopotamia, formed by rivers Euphrates and Tigris.
2. The Valley of Indus, formed by the river Indus and its five tributaries.
3. The Valley of the Ganga and Brahmaputra, formed by the rivers Ganga and Brahmaputra and their tributaries.
4. The Great Plains of China, formed by the three large rivers, the Huang Ho, the Chang Jiang and Sikiang.