Why were civil rights supporters disappointed with the supreme court’s 1896 decision in plessy v. ferguson?

Consider the demand for an inferior a good illustrated in the graph below suppose income decreases what effect would this have on the graph

What happened 10 million years ago? if u answer, u get 50 ! plz answer ; -;

The mongols were descendants of a. pastoral nomadic tribes b. tibetan tribes c. shang nobility