Multiple Choice
Which of the following is true of galaxies?
A) each galaxy has one star.
B) galaxies are measured by the speed of sound.
C) a typical galaxy,such as the Milky Way,is about 5 billion miles in diameter.
D) great clouds of gas and dust known as nebula occur within galaxies.
E) three galaxies exist in the universe.
Correct Answer:
Verified
Correct Answer:
Verified
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