1. which of the two types of erosion occurs due to the activities of man? a. geologic erosion b. accelerated erosion 2. erosion can be caused by: ( choose three ) [ ] solar radiation [ ] water [ ] alpine/ snow avalanches [ ] glaciers [ ] wind 3. what type of best management practices would/should be used in places where ground is sloped? chose all that apply [ ] terraces [ ] crop rotation [ ] windbreaks [ ] gas waterways [ ] contour 4. the “dust bowl” event of the 1930s occurred in what region of the united states? 5. the mass soil erosion that occurred during the dust bowl event was caused by several contributing factors. choose all that influenced this strategy [ ] decades of settling and farming had left tilled soil bare to the wind [ ] severe drought was affecting the entire region [ ] wild herds or buffalo over grazed the plains [ ] native grasses had been removed for farming 6. true or false: scientists believe that over grazing and inappropriate farming economies can make the air above the ground drier and warmer— and therefore less likely to generate rain clouds, thus influencing drought in a region. a. true b. false