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In Which Way Are Protostars Different from Main-Sequence Stars of the Same

Question 30

Multiple Choice

In which way are protostars different from main-sequence stars of the same mass?


A) Protostars are smaller than main-sequence stars.
B) Protostars are hotter than main-sequence stars.
C) Protostars have a different energy source from main-sequence stars.
D) Protostars have longer lifetimes than main-sequence stars.

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