Which statement about the origins of the american population is true

Was the us justified in using the atomic bomb on hiroshima and nagasaki? why or why not?

Which conditions did austria demand of serbia after the assassination of archduke ferdinand? check all that apply. 1. swearing allegiance to the triple alliance 2. accepting responsibility for the assassination 3. turning over control of its military operations 4. surrendering half of its most fertile lands 5. suppressing anti-austrian groups and publications

How w. e.b. dubois wanted to improve the social and economic situation that existed for african americans during the early 19th century?