Answer:
D
Explanation:
Although some of those came after others, they all were made better by railroads.
Yes i can help you what would you need?
I don't believe they are. I don't believe they have been proven real either.
Answer:
Soil in the north was another reason why regional differences were created between the northern and southern colonies in colonial America. The infertile northern soil caused the north to become more industrialized while the other southern colonies were more focused on farming and subsistant living.
Explanation: