Respuesta :

alyssadeeldoe
The main reason it was allowed was because slave labor allowed farmers to plant and harvest crops without having to pay workers for their labor. 

Hope this helps:)
pretty much exactly as the other person said; slaves worked on plantations to help plant and grow crops. the slave owners didn't pay them so the people who owned the plantations made a huge profit. the land in the southern colonies were also very rich and large in size.
good job