Water that has trickled down into a joint in a rock can freeze, expand, and ________.
A. glue the rock more tightly together
B. widen the crack and hastening the rock's disintegration
C. seal the crack thereby preventing further weathering
D. displace surface acids that may weaken the rock
E. make the rock harder
Answer: B
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A. A B. B C. C D. D
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A) massive coral mortality (mcm) B) bleaching C) symbiosis D) coloration
Plates move horizontally past each other along ________.
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