Read the following statements and categorize as weathering or erosion.
A. soil from a riverbank being carried downstream rock
B. steps worn down from millions of visitors a rock breaking into smaller pieces
C. when water freezes in the cracks a huge boulder transported by a glacier
D. mud sliding down a hill during a landslide
E. sand deposited on a beach from the ocean
F. a tunnel formed in soil by a burrowing animal
G. An iron statue placed outside develops an interesting red patina
H. soil from a cliff being washed into the ocean
I. fragments of rock sliding down a mountain cliff
J. a sharp rock in a stream slowly getting smoothed out and rounded
K. desert sand being carried by the wind
L. plant roots expanding a crack in a rock
M. a rock shattered by a large rock that fell on it