Multiple Choice
If the nearest star is 4.2 light-years away,then
A) the star is 4.2 million AU away.
B) the light we see left the star 4.2 years ago.
C) the star must have formed 4.2 billion years ago.
D) the star must be very young.
E) the star must be very old.
Correct Answer:
Verified
Correct Answer:
Verified
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