I believe that the answer to the question provided above is that <span> establishing smaller ethnic communities within larger communities gives more chance for people to know each other more but this might lead to the </span>conflict between groups.
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Answer:
1# D.The major differences between the North and the South caused sectionalism in the United States, leading to compromise between the regions.
2#C: It set the standard that new states could decide whether to ban enslavement or not.
3#B.Adams won a majority of the popular vote but lost the election because Jackson had more Electoral College votes.
4#B: enacting the Tariff of 1828
Explanation:
The limit of terms a president can serve
I think the answer is the 10th Amendment
Served 4 terms as president is wrong he served 2 terms.