Which describes the union's goal or motivation for fighting a civil war against the south? a) they wanted to continue the expansion of slavery. b) they wanted to end slavery and preserve the union. c) they wanted to become an independent nation free from government rule. d) they wanted to punish the south for trading with europe.

B)They wanted to end slavery and preserve the Union.

i think that it would be tenth of the first

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.