Comet nuclei typically have an average density of 0.5 g/cm3. This suggests a(n) _________ composition.
A) icy and gaseous
B) icy and loosely packed
C) icy and rocky
D) gaseous and rocky
E) gaseous
Correct Answer:
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Q51: What is the Kuiper Belt?
A) a swarm
Q52: Why are there two tails to some
Q53: In what direction does a comet's tail
Q54: A comet's tail _.
A) is gas and
Q55: The tail of a comet _.
A) points
Q57: Astronomers think that most comets come from
Q58: What is the Kuiper belt?
A) a prize
Q59: What is the Oort cloud?
A) gas around
Q60: What are comets made of?
A) mostly iron,
Q61: Annual meteor showers such as the Perseids
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