Chinese Farming Methods?

All of these farming methods conserve soil EXCEPT?

• All of these farming methods conserve soil EXCEPT: A. furrowing B. crop rotation C. contour plowing D. terracing In which of the following erosion processes is gravity NOT ...show more

• Answer:

  Contour plowing is the first and I guess dust storms is the best for the 2nd question. Gravity may not cause dust storms, but when the wind stops blowing and the dust falls to earth, it's gravity that causes it. Actually all of the last have gravity as a component. Dust storms is the only one that does not include rainfall or water as a component. Tell your teacher that and see what he/she says.