How long does it take for Earth to revolve around the Sun?
A) one day
B) one week
C) one month
D) one year
Correct Answer:
Verified
Q9: A spinning cloud of interstellar gas tends
Q10: The solar system consists mostly of
A)the Sun.
B)the
Q11: What aspect of the Sun's behavior wraps
Q12: In what region of the Sun are
Q13: The best evidence that the Sun is
Q15: Each second,the burning Sun's mass
A)decreases.
B)increases.
C)remains unchanged.
Q16: Dark nebula appear dark because they
A)reflect light.
B)emit
Q17: Nebula that tend to be reddish in
Q18: What is the evidence that the Sun
Q19: Nebula that tend to be bluish in
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