Final answer:
The Missouri Compromise and the Nullification Crisis both demonstrated increasing sectional competition and disagreements over slavery in the United States.
Step-by-step explanation:
The Missouri Compromise and the Nullification Crisis both demonstrated increasing sectional competition and disagreements over slavery in the United States.
The Missouri Compromise was a legislative measure enacted in 1820 to address the issue of slavery in newly admitted states. It allowed Maine to enter the Union as a free state and Missouri as a slave state and drew an imaginary line across the remainder of the Louisiana territory, stating that slavery would be prohibited north of that line. This compromise highlighted the growing sectional divide over slavery, as it attempted to maintain a balance between free and slave states.
The Nullification Crisis occurred in the 1830s when South Carolina declared that it had the right to nullify, or reject, federal laws that it deemed unconstitutional. The crisis primarily revolved around the issue of protective tariffs, but it also reflected the deeper disagreement between the South, which relied on a slave-based agrarian economy, and the North, which was becoming increasingly industrialized. The crisis demonstrated the increasing sectional competition and tension between the two regions.