Multiple Choice
What is an astronomical unit?
A) the average speed of Earth around the Sun
B) the length of time it takes Earth to revolve around the Sun
C) the average distance from Earth to the Sun
D) the diameter of Earth's orbit around the Sun
E) any basic unit used in astronomy
Correct Answer:
Verified
Correct Answer:
Verified
Q95: Which statement about motion in the universe
Q96: Based on observations of the universal expansion,the
Q97: What is nuclear fusion?<br>A)an explosion caused by
Q98: On a scale in which the distance
Q99: Our solar system is located in the
Q100: How are galaxies important to our existence?<br>A)Without
Q101: On a scale where the Sun is
Q102: Astronomers infer that the universe is expanding
Q103: The total number of stars in the
Q104: The distribution of the mass of the