PLEASE HELP WILL MARK BRAINLEST 1. What Supreme Court case overturned Plessy v. Ferguson in 1954?

2. Due to KKK violence and lack of jobs, what was the name of the mass movement of African Americans to the North

Science cannot describe things that a.) are beyond imagination, experience, or human ability b.) cannot be observed, measured, or tested c.) have not been conclusively proven d.) occur without being seen, heard, or felt