well sahara is the largest hor desert of the world. the people became nomads, and goat and camel herders. The coatal area north of sahara does still produce fruits and some grains. Even durinf roman times the coastal area flourished with some powerful country/states, until the Romans conquered them and incoporated large areas of North Africa into the empire. if u will notice population in the sahara is not very large but is able to support certain tribes like the Tauregs.
..............hope it help!! >.<
Answer:
Explanation:
The work in the south was farming. To maintains these big farms you needed a lot of people to do the work. Since hiring people costs a lot of money they usually bought slaves to do the work for them because it was cost proficient. The north focused more on industry working and factories so people had a lot of jobs and there wasn't really a big need for slaves. That's why when the north wanted to abolish slavery the south didn't agree because most of their farms were maintained by slaves. Thus the Civil War happened.