Explain why the southern colonies developed an economic system that relied on slavery

England's southern colonies in North America developed a farm economy that could not survive without slave labor. Many slaves lived on large farms called plantations. These plantations produced important crops traded by the colony, crops such as cotton and tobacco.

Explanation:

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

the answer is b just took the test