Before the Dust Bowl era, farmers had failed to rotate crops or ___ which contributed to severe topsoil erosion in the Great Plains. a. plant windbreaks
b. store enough groundwater for irrigation
c. establish early farm relief organizations
d. fertilize farmland

Why did some states believe they had the power to overturn federal laws?

What role and side did italy fight on during world war 1? why did they change sides? write this in your own words.

What explains the increase in life expectancy in botswana? a. the increased availability of jobs and an improved economy b. access to antiretroviral drugs, hiv/aids education, and widespread hiv/aids testing c. a series of military takeovers that stabilized the political system and led to education reform and increased literacy rates d. a recent military coup that led to an improved healthcare system select the best answer from the choices provided.