Multiple Choice
A planetary nebula is a(n)
A) contracting spherical cloud of gas surrounding a newly formed star in which planets are forming.
B) expanding gas shell surrounding a hot, burned-out stellar core.
C) disk-shaped nebula of dust and gas around a relatively young star, from which planets will eventually form.
D) nebula caused by the supernova explosion of a massive star.
Correct Answer:
Verified
Correct Answer:
Verified
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