Which of the following choices best explains the difference between a crater and a caldera?
A) A crater is a very large circular depression over 1 km across; a caldera is a small funnel-shaped depression.
B) A crater is a small, funnel-shaped depression; a caldera is a large depression that has a diameter of over 1 km.
C) A crater is a fissure in the crust; a caldera is a collapsed summit.
D) A crater is a large circular depression over 1 km across; a caldera is a small, parasitic cone growing on the flank of the volcano.
Answer: B
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A. Oort cloud, Kuiper belt, asteroid B. Kuiper belt, Oort cloud, asteroid C. Asteroid, Kuiper belt, Oort cloud
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