Chapter Quiz: Star Birth and Death

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  1.    Black holes are formed by
  2.    What force keeps Normal Stars from collapsing?
  3.    What percentage of the solar nebula's mass consisted of hydrogen and helium gases?
  4.    Unlike a main sequence star, a red giant at its center may be fusing
  5.    An isolated star with twice the mass of the Sun will
  6.    White dwarfs cannot be more massive than _____ solar masses.
  7.    White dwarfs are composed mostly of
  8.    The Schwarzchild Radius of a black hole depends only on the ______________ of the collapsing stellar core.
  9.    If you observe higher proportions of heavier elements in the star :
  10.    The gas in H II regions is radiating under the influence of
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