Erosion is a type of physical weathering which involves wearing down rocks.
(Erosion; is; a type of physical weathering which involves wearing down rocks) (a type of physical weathering; involves; wearing down rocks) (Erosion; is a type of; physical weathering)
Erosion a type of physical weathering Erosion
is involves is a type of
a type of physical weathering which involves wearing down rocks
wearing down rocks
physical weathering