Question

what was the caues of terriflying dust Storms of the south and of plains of USA

Answer 1

The Dust Bowl is an environmental disaster that hit the Midwest in the 1930s. A combination of a severe water shortage and harsh farming techniques created it. Some scientists believe it was the worst drought in North America in 300 years. 

The lack of rain killed the crops that kept the soil in place. When winds blew, they raised enormous clouds of dust. It deposited mounds of dirt on everything, even covering houses.