It caused the civil war. The industrial revolution in the North, during the first few decades of the 19th century, brought about a machine age economy that relied on wage laborers, not slaves.
Answer:c
Explanation:
because the children were free and they helped the slaves sometimes but they also were the owners kids playmate to keep him company.
Neutrality was difficult policy in the U.S. to maintain because they were still having business with Europe.
The fur trade became a lasting source of profit.
