Question

What made it possible for the Mississippi River Valley to support large cities?

Answer 1

The big river was helpful to many people and other in the city it’s was basically a big source of water near by

Answer 2

Answer: Moving their goods down river to the Mississippi, to New Orleans, and then by sea to the cities on the Eastern Seaboard was cheaper and actually easier which made it a popular location for trade and to build cities . Also The Mississippi River provided water source to the people whom lived in the area.

Hope it helps <3 (Please tell me if you need anymore help)