Why was slavery more important in the South than the North

The South grew cotton, and labor intensive crops, and they found out that they can make MASSIVE profits if they used slaves, instead of picking the crops by themselves, and the UK and France relied on the South for their cotton, so slaves ultimately got the harvest done much more quicker, resulting in the plantation owners getting a lot of money.

Because they plantations in the South and they need someone to do the work

Explanation:

It was wrong slavery should have never been a thing God Bless

definitely a for sure. ill see and update if i get the answer