Nuclear Fusion Reactions That Convert Helium into Carbon and Oxygen

question 96

Multiple Choice

Nuclear fusion reactions that convert helium into carbon and oxygen in the central core of a star occur during which phase of a star's life?

• A) in the red giant stage, before helium flash
• B) during and immediately after the (first) red giant or supergiant stage
• C) during the protostar stage
• D) after the main-sequence phase, before the star becomes a red giant

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