Which of the following statements best characterizes the geology of western North America, starting in California and extending through British Columbia and 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
Answer: C
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Light that is absorbed in glass reemits it at a frequency that is
A. the same. B. less. C. somewhat greater. D. none of the above
Which of the following were factors to consider in the Chapter 1 Investigation?
A) Wind directions B) How much sunlight reaches the ground C) Type of rocks, sediment, and soil D) Streams, lakes, and glaciers E) All of these choices are correct
As a star undergoes collapse, its rate of rotation
A) decreases. B) increases. C) remains constant.
Based on current trends, predict the population change for each world region until 2050
What will be an ideal response?