It's seventh grade social studies the question is written "how did the issue of slavery cause the Civil War?"

Answer:
The civil war started because the south wanted to keep the country enslaved while the north wanted a free slave country. This divison between the north and the south created the civil war
Answer:
It divided the nation.
Step-by-step explanation:
North wanted to banned slavery, while the south didn't. At that time states from the north and the south were in the union. The south succeeded from the union, because of some slavery issues which lead to the Civil War.