Why is the hai river important or what role does it play in china? plz!

It is extremely important economically.

Explanation:

The Hai River and its tributaries form one of the most important river basins in China. Because it flows through a heavily populated area and also one used intensively for agricultural purposes, the river is essential for irrigation and also for human water supply.

The river and its tributaries connect the Chinese capital of Beijing to another one of the nation's largest urban agglomerations, Tianjin.

answer; (wisconsin);

explanation: the badger state. this nickname originally referred to the lead miners, of the 1830s, who worked at the galena lead mines in illinois. these mines were in northwestern illinois close to the borders of wisconsin and iowa. the wisconsin miners lived, not in houses, but in temporary caves cut into the hillsides.