A. It relied on safe houses run by northern whites and blacks to move slaves to Canada.
The Nazi Party rose to power in Germany during the 1930s
Answer:
Transportation and the ability for factories to be located anywhere
Explanation:
The steam engine allowed for people to travel farther faster and well as gave factories the ability to be located anywhere and not near the source of water to get supplies.
One reason the United States emerged from World War II a clear world power was that "<span>The United States suffered fewer casualties during the war," since the US had been protected from the conflict by the Pacific and Atlantic oceans. </span>
