The ____ of a comet is a lump of fragile, porous material containing ices of water, carbon dioxide, and ammonia.
A) nucleus
B) coma
C) dust tail
D) gas tail
E) chondrule
Correct Answer:
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Q20: Stony meteorites are common among falls.
Q21: What is the largest object found between
Q22: A Trojan asteroid is caught within the
Q23: Where on Earth is the impact crater
Q24: What do scientists believe to have caused
Q26: Which type of asteroid is classified as
Q27: Which comet hit Jupiter in 1994?
A) Comet
Q28: Where are S-type asteroids typically found in
Q29: What are Sun grazers?
A) asteroids that impact
Q30: Which type of asteroid is classified only
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