What democratic methods much have been involved in order to amend constitution

Which landmark supreme court case ruled that segregation by race in public education was unconstitutional? a. miranda v. arizona b. plessy v. ferguson c. brown v. board of education of topeka d. alexander v. holmes county board of education

What is significant about official languages in russian republics? why would it matter?

The oldest known mesopotamian civilization settled in areas along river banks or sea sides surrounded by mountains and deserts which two statements explain why three geographical features led to the rise of mesopotamian civilizations