sausagemcgriddl sausagemcgriddl

27-03-2017
Physics

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a planetary nebula is the phase of a

A) star in its late life
B) protostar before it becomes a white dwarf
C) star before it becomes a black hole
D) planet before it becomes a star

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27-03-2017

i would go with D but i dont know if it right

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