Why did american farm land in the dust bowl region turn to infertile dust?

How did the relationship between settlers and native americans change after the homestead act was put into place ?

Which of the following was a goal of european conservatives in the early 1800s? a. the establishment of a homeland for people with a common heritage b. the expansion of suffrage to the middle class c. the constitutional protection of natural rights d. the preservation of traditional ways of life

How did the economic impacts of the great depression differ in the united states and in the soviet union?