Answer:
1.) (B)
2.) Schools found out that the segregation of public schools was a violation of the 14th amendment, so they had to desegregate schools. (A)
It is not accurate that "<span>c. Most of the native population was immune to the diseases introduced to the Americas from the Eastern Hemisphere," since in fact many died from exposure to such diseases. </span>
Airplanes and Tanks (ignore this stuff in the parenthesis i just needed to make in 20 characters long..)
The first Europeans reached the Grand Canyon in September 1540. It was a group of about 13 Spanish soldiers led by García López de Cárdenas, dispatched from the army of Francisco Vásquez de Coronado on its quest to find the fabulous Seven Cities of Gold.