Answer:
The South was more dependent on slaves because they supported slavery. They were accustomed to having others doing the work for them. On the contrary, the people living in the North supported the abolishment of slavery so they were used to doing their own work and being dependent on themselves.
You can add anything else, i wrote this in like 5 seconds lol. Sorry if a few things are repetitive. Also, make sure to include keywords from the lesson so they understand that you know the topic :) hope this helped hehe