The outer envelope of material ejected from a red giant as it collapses to a white dwarf is called a

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      supernova
      supergiant
      pulsar
      planetary nebula
      quasar
asked Mar 12, 2013 in Earth Science by anonymous
    

1 Answer

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planetary nebula
answered Mar 15, 2013 by h20 ~Top Expert~ (6,320 points)

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