Fertile land that lay west of the Mississippi River and east of the Rocky Mountains?

What is the name of the region situated between the Mississippi River and the Rocky Mountains?

Great Plains

The Great Plains are found between the Mississippi River and the Rocky Mountains.

Explanation:

well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.