Bays teacher says that water can cause both physical weathering and erosion. Billy draws the following image in his notes. What should Bily label his drawing?
A) physical weathering, because the rock is changing state from solid to liquid
B) erosion because some rock has been removed from the bank by the flow of water
C) physical weathering, because the water is being directed by the rock
D) erosion, because the water is unable to move through the rock