Compared with the coma, or the visible fuzzy ball, of a comet 106 km in diameter, the diameter of the nucleus of a typical comet is
A) about 1/100, or 10,000 km.
B) about the size of the largest asteroid, 1/1000, or 1000 km.
C) extremely small, 1/108, or 10 m.
D) very small, about 1/105, or 10 km.
Correct Answer:
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