Multiple Choice
If the distance to the nearest star is 4.2 light years,what can we conclude about the star?
A) The star is 4.2 million AU away.
B) The star's light takes 4.2 years to reach us.
C) The star must have formed 4.2 billion years ago.
D) The star must be very young.
Correct Answer:

Verified
Correct Answer:
Verified
Q16: Which of the following is another way
Q17: An Astronomical Unit is larger than a
Q18: The speed of light is 3.0×10⁵ km/sec,and
Q19: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB1453/.jpg" alt=" -In the diagram,what
Q20: The Earth has a radius of about
Q23: The numbers 9.81×10⁵ and 981,000 are equivalent.
Q24: What is the ratio of the diameter
Q25: What is the reason for compressing the
Q26: If light takes 8 minutes to travel
Q44: A(n) _ is the largest known structure