How did farming practices in the midwest during the great depression contribute to the conditions which caused the dust bowl? a. farmers left their fields unplanted because they had no money to buy seeds, leaving the ground uncovered. b. farmers dug extensive wells to irrigate crops and drained underground water supplies, which dried out the soil. c. farmers switched from growing wheat to raising livestock and overgrazed the land, destroying the native plant species. d. farmers plowed deep into the ground to create fields, destroying existing root structures that held the top soil together.

On a map showing the employment density of an urban area that follows the urban realms model, which of following statements best describes what the distribution of jobs might look like? (3 points) jobs closely follow major transit routes. jobs appear to be shifting from the inner to outer core. most jobs are concentrated around the central business district. jobs are distributed roughly in circles. several edge cities contain high numbers of jobs. which of these is not a criticism of the concentric zone model? (3 points) it does not accurately describe cities after the rise of suburban development. it only applies to cities that grew after the development of the automobile. it fails to address the development of cities outside of the united states. it assumes that inner-city areas will always be repurposed instead of abandoned. it places too much importance on the traditional central business district.