lamarduaghter lamarduaghter

18-02-2016
Geography

contestada

A group of stars, gas, and dust held together by gravity is a ____.
a.
galaxy
c.
Local Group
b.
constellation
d.
both a and b

Respuesta :

18-02-2016

The answer is a. galaxy, because is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.

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