2. What long term effect did mechanized farming, specifically the use of tractors, in the 1920s have upon the Texas Plains?
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1 point
A. It created a natural barrier to wildlife such as buffalo
B. It eroded topsoil and worsened the effects of dust storms.
C. It created a natural barrier to settlement of the Great Plains.
D. It made the Great Plains a productive source of cotton and food crops.