The Kansas-Nebraska Act allowed each territory to decide the issue of slavery on the basis of popular sovereignty. Kansas with slavery would violate the Missouri Compromise, which had kept the Union from falling apart for the last thirty-four years. The long-standing compromise would have to be repealed
Having their people work in factories to build up their military and/or put more money out
The important skill that gave Africa's Bantu speaking people an advantage would be "ironworking" This allowed them to successfully create things the Nomadic hunters couldn't.
Floods are beneficial to agriculture because it carries deposits
that makes soil fertile, It can also rid of any
contaminates on the land