Multiple Choice
A white dwarf 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
Correct Answer:
Verified
Correct Answer:
Verified
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