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staedtler staedtler
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7 years ago
A white dwarf star is at what stage of its evolution?
A)   Protostar phase, just after formation, beginning to generate energy by nuclear fusion
B)   Main-sequence phase, “middle-aged,” generating energy by fusion of hydrogen to helium
C)   Post-supernova stage, after the explosion of a star
D)   Very late phase of evolution, no longer generating energy
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
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papachulopapachulo
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7 years ago
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staedtler Author
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7 years ago
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