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  1. What is "Supernova"?

  2. A.

     Comet

    B.

     Asteroid

    C.

     Meteor

    D.

     Black Hole

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    Answer : Option D

    Explanation :

    The most likely 'cannon' is the explosive kick of a supernova, one of the Universe's most titanic events. When massive stars end their lives, they explode violently as supernovae. They leave either a neutron star or a black hole as a remnant, depending on how massive the star initially is.


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