What is a connection between huang he and northern chinese civilzation

Huang He is the famous yellow river in Northern China which was considered as the cradle of civilization of China. Because of this river, the region where it was located is the most prosperous in China where the Chinese civilization also began though the floods in this river become devastating after some time.

yes.

explanation:

because it let the japanese know who had the upper hand in the war.

these civilizations were located around fertile rivers, where they could produce an abundance of crops