What is a one sentence summary about the the causes of the civil war for middle school?

A common explanation is that the Civil War was fought over the moral issue of slavery. In fact, it was the economics of slavery and political control of that system that was central to the conflict. A key issue was states' rights.

-hope that helped:) plz mark me brainliest it helps my reputation to become a expert braily member :)

post the grid otherwise i cant .

also it sounds like a math question not history.