The main reason the US Civil War started because the Northern and Southern colonies had different views on how slavery should be handled. So they went to war to decide.
C is the answer hope it helps
Some of the arguments used to support US expansion and manifest destiny were: European examples, new markets and access to vast natural resources. Because of the US massive industrial expansion and production, US industries needed new markets to sell their goods to and they need access to more natural resources to ensure the continued production. The US expanded its inluences into Alaska, the Pacific (Hawaii, Samoa, Guam, and the Philippines), Latin America and Asia (China and Japan)
Answer:
A, the cotton gin.
Explanation:
The cotton gin separated the seeds from the cotton significantly quicker than any enslaved person could, thus increasing the amount that was produced.
<em>Hope this helps!</em>
