When water is trapped in small cracks in rocks, it will expand as it freezes and break up the rock causing weathering.
(water; is trapped; in small cracks in rocks) (it; will expand; T:as it freezes and break up the rock causing weathering; T:When water is trapped in small cracks in rocks) (it; freezes; )
water it it
is trapped will expand freezes
in small cracks in rocks
T:as it freezes and break up the rock causing weathering T:When water is trapped in small cracks in rocks