400
Which is the best example of physical weathering?
A) the cracking of rock caused by the freezing and thawing
of water
B) the transportation of sediment in a stream
C) the reaction of limestone with acid rainwater
D) the formation of a sandbar along the side of a stream
A) the cracking of rock caused by the freezing and thawing
of water
(Multiple choice was required, given the wording of the question)