Because the South was mainly farms that had to be worked by hand, while the North was more industrialized and had more factories. The white Southerners did not want the slaves to be freed because they wouldn't have free labor and would be forced to pay workers to work their fields.
Although the principles of separation of church and state along with freedom of the press were advocated by many different Enlightenment philosophers, perhaps the most famous was John Locke.
Black is the least reflective color because it absorbs all light
The cake is the direct object
According to the sites that I've visited and read, the answer to your question "<span>The victory in brown v. board of education was limited by a follow-up 1955 ruling __________" </span> is letter c. allowing states "all deliberate speed" by which to comply with the decision.