What is the CNO cycle?
A) the process by which helium is fused into carbon, nitrogen, and oxygen
B) the period of a low- mass star's life when it can no longer fuse carbon, nitrogen, and oxygen in its core
C) the process by which carbon is fused into nitrogen and oxygen
D) the period of a massive star's life when carbon, nitrogen, and oxygen are fusing in different shells outside the core
E) a type of hydrogen fusion that uses carbon, nitrogen, and oxygen atoms as catalysts
Correct Answer:
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A)The star
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Q88: What is the CNO cycle?
A)the set of
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Q90: Carbon fusion occur in high- mass stars
Q92: What is a planetary nebula?
A)gas created from
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