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
Q7: The Milky Way galaxy
A)is a conical galaxy.
B)is
Q8: Which of the following is true?
A)the Sun
Q9: During the process by which energy is
Q10: Of all the matter in the Solar
Q11: Which of the following statements is correct?
A)a
Q13: The basic idea behind the planetesimal hypothesis
Q14: The planets in the solar system are
Q15: Which of the following is true of
Q16: Which of the following is true?
A)It takes
Q17: The planetesimal hypothesis pertains to the formation
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