I believe you're looking for the Missouri Compromise.
Answer:
In an absolute monarchy, the monarch is an autocrat who has complete control over the state and government, including the authority to rule by decree, issue laws, and administer punishments. The monarch's power under a constitutional monarchy is limited by the constitution.
Explanation:
The geography of the land
Slavery developed in the American colonies in the mid-1600s due to the economy of the South depending on the cultivation of crops; the need for agricultural labor led to the establishment of slavery.
I hope this helps a little.
The answer is most likely either Rapid growth of the workforce or exports to foreign markets expand.