Explain how icebergs are used as analogies for surface elevations
What will be an ideal response?
Ice (and crust) floats because it is lower density than water (mantle). It is mostly submerged though, because it is lower-density material. If you change the mass, you change the position of the blocks in the water.
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In many countries, the landholding systems are holdovers from colonial periods
Indicate whether the statement is true or false.
A student who had once lived in Alaska describes the following personal experience: "The shaking of the ground beneath my house caused compaction of the particles, which caused a later mass movement resulting in my house breaking apart."
Evaluate this statement. A) It is probably true, except that it is unlikely that the mass movement would be strong enough to break a house apart. B) It is probably false. Most breaking action occurs during an earthquake, not after the earthquake. C) The entire statement is true. D) It is more likely that liquefaction, caused by shaking regolith that contains water, caused the mass movement than it is likely that it was caused by compaction.
Most commercial logging today takes place in ________
A) the United States B) Mexico C) Canada, Russia, and Brazil D) Europe E) Australia
________ commonly trigger mass wasting events.
A. Earthquakes B. Hurricanes C. Humans D. Glaciers E. Wind