Which is not weathering?


not weathering?
==> a. bear digging cave hibernation (this mechanical action, while other choices due rain, wind, freeze, thaw cycles)
b.large gully on unplated land
c.rock slit 2 pieces
d. rusty nails sticking out of boards
-=-=-=-=-
hope helpful.

a. bear digging cave hibernation
b.large gully on unplated land
c.rock slit 2 pieces
d. rusty nails sticking out of boards


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