The greatest expansion of farmland in the United States
occurred in the Western State and the Plain States since 1900. Irrigation and
harvest of crops increased during this period. Therefore, the American farm
families migrated to the Western State.
Pioneer settlers were sometimes pulled west because they wanted to make a better living. Others received letters from friends or family members who had moved west. These letters often told about a good life on the frontier. The biggest factor that pulled pioneers west was the opportunity to buy land.
Martin Luther King targeted Birmingham, Alabama, for a civil rights campaign because it was considered the most segregated city in the South.
The correct answer is A: Drought and D: Better-paying jobs.
In the 1930s, farmers from the Midwestern Dust Bowl states, especially Oklahoma and Arkansas, began to move to California. A drought outbreak in the 1930s allowed dust storms to carry away topsoil, darkening the sky even at mid-day, As families realized that the drought and dust storms would not end, some sold what they could not take and began to migrate southwest. Many hoped to become hired hands on California farms.
The answer is A - The high literacy rates in New England that allowed people to read books and newspapers