Which of the following was the cause of the debris flow in Oso, Washington, in March 2014?
A) Volcanic eruptions generated a lahar.
B) A stream at the base of a slope eroded the toe of the slope away.
C) Heavy rains saturated the surface materials on the slope.
D) The slope was oversteepened during construction.
Answer: B
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Faults are:
A) cracks where displacement has occurred. B) fracture planes along which rocks used to move but don't any longer. C) fractures in the bedrock. D) fracture planes along which rocks move.
Creep is most effective and significant in a(n) ____________________ climate. Fill in the blank(s) with the appropriate word(s)
Summarize the key patterns and drivers of migration into and out of the region
What will be an ideal response?
Saturn is often referred to as a mini solar-system orbited by
A. planets. B. moons and planets. C. asteroids. D. large and small moons.