Which of the following was a cause of the ecological disaster known as the Dust Bowl?
A. Excessive rainfall that year
B. A flood in California
C. A massive earthquake that loosened the topsoil
D. The plowing under of native grasses that kept topsoil in place
Well its defiantly not a surplus of water. it was a major drought, thus storms of sand/dust ripped trough the west. At least that's what i remembered. i also remembered that they did a LOT of farming, which sucks up the topsoil.
