How were the Appalachian Mountains formed?

A) thrust and uplift of continental crust
B) accretion by subduction zones
C) as a volcanic island arc
D) sea mounts and island volcanoes


Answer: C

Environmental & Atmospheric Sciences

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Answer the following statement true (T) or false (F)

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What will be an ideal response?

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The ________ includes rocks of the crust and uppermost mantle.

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