What advantages did the union have over the confederacy?

During the Civil War, Southern States seceded from the Union and created the Confederacy States because they felt their interests were no longer represented in the Union under Abraham Lincoln's leadership, because he wanted to stop the expansion of slavery.

Northern states, also known as the Union, were urban free-states, and some of their advantages were:

d. it adversely affected american productivity

i think 3 documents.

hope i

-lavira: )