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5 February, 20:37

A galaxy is a group of billions of stars, star systems, star clusters, dust and gas bound

together by

A. friction

B. gravity

C. light

D. water

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Answers (2)
  1. 5 February, 21:28
    0
    Gravity (B)

    Explanation:

    In reality this is an easy question to answer, but i'll explain it. The black hole in the center of whatever galaxy is creating an insane amount of gravity, pulling everything towards it and thus keeping it together.
  2. 5 February, 21:38
    0
    The answer is gravity. (B)
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