Answer: Industry vs. Farming, States' Rights, Expansion
Explanation: In the mid-1800s, the economies of many northern states had moved away from farming to industry. A lot of people in the North worked and lived in large cities like New York, Philadelphia, and Boston.
The idea of states' rights was not new to the Civil War. Since the Constitution was first written there had been arguments about how much power the states should have versus how much power the federal government should have.,
As the United States continued to expand westward, each new state added to the country shifted the power between the North and the South.
