Which of the following statements best characterizes the geology of the Pacific coastal regions of western North America up into Alaska?
A) Divergent rifting creating deep, wide valleys with grabens
B) Collision of a massive subcontinent of old igneous and metamorphic rocks, resulting in fold-and-thrust mountains that are still growing
C) Geologically distinct, microcontinent-sized fragments and terraces accreted to the continent
D) Metamorphosed accretionary wedges
Ans: C) Geologically distinct, microcontinent-sized fragments and terraces accreted to the continent
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A) It has a definite chemical composition. B) It has a crystalline structure. C) It forms as a result of recrystallization caused by pressure. D) It is solid.
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Bowhead whales are members of which of the following orders?
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