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Questions and Answers
What process is responsible for the synthesis of fresh atomic nuclei from pre-existing nuclei or nucleons?
What process is responsible for the synthesis of fresh atomic nuclei from pre-existing nuclei or nucleons?
- Stellar evolution
- Supernova explosion
- Gravitational collapse
- Stellar nucleosynthesis (correct)
What phase of stellar evolution does a red giant star represent?
What phase of stellar evolution does a red giant star represent?
- Early main sequence
- Pre-main sequence
- Late main sequence
- Late phase of stellar evolution (correct)
What is the primary composition of a white dwarf star?
What is the primary composition of a white dwarf star?
- Mostly ionized, neutral or molecular hydrogen
- Mostly iron and nickel
- Mostly electron-degenerate matter (correct)
- Mostly hydrogen and helium
What is the relationship between a star's mass and its eventual fate as a white dwarf?
What is the relationship between a star's mass and its eventual fate as a white dwarf?
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What was the key insight that led to the discovery that the universe is expanding?
What was the key insight that led to the discovery that the universe is expanding?
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What is the primary composition of a nebula?
What is the primary composition of a nebula?
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