Answer:
The development of new cities-Louisville, Cincinnati, St. Louis, and Buffalo-away from the Atlantic coast was possible because they had access rivers that made it easy for them to trade.
It was B. border dispute with Mexico
They wanted to protect the families and the children so no lives would be lossed
Indian Removal Act was passed which resulted in the forced displacement of the Native Americans to reservation lands
Explanation:
Due to the belief of Manifest destiny, Americans decided to settle in the west of the Appalachians which was the primary area of the native american tribes like Cherokee,Chickasaw, Choctaw, Muscogee Creek and Seminole peoples. the western tribal land became valuable because it was fertile and congenial for settling. The states which saw them included in such lands pressured the federal Government to enact the Indian removal act. "trail of Tears" is the route in which the native Americans undertook their journey by foot for displacement.
During this move, many dies out of exhaustion, starvation and cold. US gained millions of square miles of territory for settling. Much of the fertile land were used for cotton production and many slaves were employed in the plantations. Thus southern economy ran basically on agriculture and slavery.
