The difference in life between the north and south can be contributed to

The economic differences between the North and South contributed to the rise of regional populations with contrasting values and visions for the future. The Civil War that raged across the nation from 1861 to 1865 was the violent conclusion to decades of diversification.

Explanation:

d) the constitution rights of native americans and their right to self-government on reservations

the name of the theory is landmass theory.