14) 3 because there is nothing stopping the wind, and it has a fatser speed than the bottom one.
15) Is 3 again, I am not completely sure, but since it is being eroded it should be smaller and smoother than before.
16) 1 because that is a true fact, I believe Alfred Wenger came up with the theory of continental drift because of this.
17) 2 because it is the top layer.
