Which of the following does NOT physically loosen rocks on the surface?
A. joints that form when rock pressures are released
B. rodents and other burrowing organisms
C. water contracting as it freezes
D. roots that pry apart fractures as the root grows in size
E. crystals of salt and other minerals that exert an outward force on fractures
Answer: C
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A) floodplain width. B) average channel depth. C) the rate of aggradation or degradation of a stream. D) historical records of discharge during precipitation events.
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A) half of what it is today. B) twice what it is today. C) the same as it is today. D) four times what it is today.
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