This is the water that often causes erosion and is the main contributor to floods.
(This; is; the water that often causes erosion and is the main contributor to floods) (the water; causes; erosion; T:often) (the water; is; the main contributor to floods; T:often)
This the water the water
is causes is
the water that often causes erosion and is the main contributor to floods
erosion T:often
the main contributor to floods T:often