What was a significant cause of the Dust Bowl?
A. Farmers abandoned the Great Plains during the 1920s to acquire
cheaper land on the West Coast.
O B. Great Plains farmers attempted to raise prices by planting fewer
crops.
O C. Great Plains farmers refused to adopt mechanized farming
techniques to protect their lands from drought.
O D. Farmers in the Great Plains used mechanized equipment to
remove native grasses from their fields.