During the 1870s and 1880s, most of the immigrants to the united states came from

Who believed that the best economic system was on in which businesses compete to gain profit with minimal or no government control

At the time of the brown v. board of education decision,schools were segregated everywhere in the country.several states had laws requiring segregated schools.schools in nearly every state has been desegregated.segregation was common in the north, but not in the south.

The permo-triassic extinction event had a greater impact on the number of earth's species than did the extinction event at the end of the cretaceous true false