A year is the time needed for
A) the sun to migrate completely around the sky.
B) the moon to migrate completely around the sky.
C) the earth to turn completely on its axis.
D) None of the choices are correct.
Correct Answer:
Verified
Q13: The stars in a constellation
A) are about
Q14: A week is the time needed for
A)
Q15: When first proposed, a scientific idea is
Q16: What distinguishes the scientific method from other
Q17: Kepler modified
A) the Ptolemaic system.
B) the Copernican
Q19: Scientific theories
A) must be constantly reviewed to
Q20: A planet that cannot be seen with
Q21: In most parts of the world high
Q22: A meter is not equal to
A) 100
Q23: If the earth had no moon,
A) there
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