Which of the following is not a way an earthquake can trigger mass wasting?
A) Shaking will harden the soils at the surface, which repels flowing water.
B) Shaking creates a landslide.
C) Liquefaction caused sediments to behave like fluids and move.
D) Shaking has created rock falls that have blocked canyons, an effect that will lead to later problems during flash floods.
Question 2
A stream is flowing over a hill covered in thick soil. The stream is eventually blocked to create a small pond in order to free land downhill for construction.
What will ultimately happen to the strength and cohesion of the soil in the area around this pond?
A) Strength and cohesion will decrease.
B) Strength and cohesion will increase.
C) Strength will decrease and cohesion will increase.
D) Neither will be affected.
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