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4. Suppose that tomorrow someone bulldozed all the rocks in the Appalachians, right down to sea level, and shipped all of those bulldozed rocks to Uzbekistan to build ski slopes. A few thousand years from now, we probably would find that the surface of the Earth exposed by the bulldozers was:
A) Higher than the Appalachians are today, because of volcanic eruptions triggered by the bulldozers.B) At sea level.C) As high as the Appalachians are today, because of obduction.D) As high as the Appalachians are today, because the roots of the mountains bobbed up.E) Almost, but not quite, as high as the Appalachians are today, because the roots of the mountains bobbed up.Feedback: Nine-tenths of an iceberg, or an ice cube, is below water, with one-tenth above. The iceberg is big, the ice cube little, and one-tenth of big is more than one-tenth of little, so the iceberg sticks up higher than the ice cube. Cut the top off the iceberg, let it bob up, cut the top off, let it bob up, and you’re slowly turning the berg into a cube, so each time the height of the berg is reduced a little. Same is true for a mountain range—cut the top off by erosion, bobs up almost as high as before, erode the top off, repeat, and slowly the height is reduced. The initial thickness was made by the collision of obduction, but then erosion and bobbing-up take over.Correct Answer(s):EPoints Earned: 1.0/1.0 5. The cartoon above illustrates a specific geologic process. Which of the additional geologic images DOES NOT feature this same process at work?