18 The main result of the Dust Bowl in the 1930s Midwest was:

1)The development of fertile topsoil in the Great Plains.
2)The mass migration of agricultural workers to California.
3)The creation of a guest worker program along the U. S. Mexico border.
4)All of the above.

The 14th amendment overruled the supreme court case of dred scott vs. sandford. the landmark supreme court case determined which of the following points? a. slaves could not be citizens b. non-landowners could not be citizens c. blacks could not be citizens d. all persons born or naturalized in the united states vary differently in citizen status.

Why was the outcome of oswald’s trial for the assassination of president kennedy

Which of the following arguments decided the debate over using the atomic bomb against japan in 1945? using the bomb would destroy the armaments still available to japanese forces in japan. using the bomb would demonstrate the power of the united states to the entire world. using the bomb would shorten the war and avoid heavy casualties among invading troops. using the bomb would enable allied forces to invade and take over the japanese mainland