What Physical Process Is Taking Place Inside a Star That

question 63

Multiple Choice

What physical process is taking place inside a star that is in the main-sequence phase of its life?

• A) Hydrogen is being converted to helium in its core.
• B) Hydrogen is being converted to helium in a shell around a core where no nuclear reactions are occurring.
• C) The gas in the star is contracting gravitationally without nuclear reactions taking place.
• D) Helium is being converted to carbon in its core.

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