A High-Mass Star Goes Through Many Fusion Cycles in Its

question 45

Multiple Choice

A high-mass star goes through many fusion cycles in its lifetime: hydrogen, helium, carbon, neon, oxygen, and silicon. How does the timescale for each cycle compare to the previous one?

• A) Each new nucleus is heavier than the previous one, and thus it moves more slowly. Each successive stage therefore takes longer than the previous one.
• B) The temperature is higher at each stage, and the number of nuclei to react is fewer. Thus, each stage takes a shorter time than the previous one.
• C) 2 M to 8 M only
• D) all stars 0.4 M to 8 M

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Definitions:

Disjunctive

Relating to or involving a choice between mutually exclusive possibilities or a situation that requires a selection to be made from among such possibilities.

Injunctive

Pertaining to an order or directive issued by an authority, often legal in nature, requiring specific actions to be taken or avoided.

Adjunctive

Supplementary or additional to something rather than being an essential part; often used in the context of treatments or activities that support a primary objective.

Conjunctive

Serving to connect or combine items logically, typically used in reference to words or phrases.