The number of planets in the Solar System is
A) 8
B) 9
C) 12
D) 6
Correct Answer:
Verified
Q12: The early universe was composed mainly of
Q13: The most massive elements (such as those
Q16: If the diameter of our galaxy is
Q20: Which of the following is FALSE?
A) The
Q21: Write 0.00000037 in scientific notation.
A) 3.7 ×
Q27: Light from the Sun takes about _
Q28: Measuring distances in the amount of time
Q34: Our universe is approximately _ years old.
A)
Q38: The speed of light is about
A) 20
Q48: The cosmological principle states that
A) the universe
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