I have no idea what the last thing is trying to say, but the first three answers would be correct!
Plessy v. Fergusson was a court case that ruled, Blacks can have the separate but equal opportunities. Brown v. Board was a court case that ruled, Schools where to be desecrated. This helped fuel the Civil Rights Movement.
They were influenced by rain and where they were there was no rain and some with cold from the change of climate