Which statement best defines differential erosion?(1 point)

Question

1 erosion that occurs at the same rate despite the type of rock
2 when the side of a mountain is eroded by a glacier into a bowl-like depression
3 erosion that occurs at differing rates because of the varying hardness/softness of rocks
4 when sand is deposited off the main shore of a coastline, forming barrier islands

Answer 1

3 erosion that occurs at differing rates because of the varying hardness/softness of rocks