How did china's physical geography affect the development of its early civilation

The early Chinese civilization was located between two main rivers, the Yangtze River and the Hung He River, because unlike most of China, the plain between the two rivers is fertile, allowing the people to grow rice and other crops. The rivers provided water for daily life, and, near the Yangtze, the water from mountain run off allowed people to grow rice. The nomads in the northern grasslands became the Mongols and did not develop ...