Light from the star, Alpha Centauri, which is nearest to the earth aft – McqOptions

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1.	Light from the star, Alpha Centauri, which is nearest to the earth after the sun, reaches the earth in _____________
A.	42 seconds
B.	42 years
C.	4.2 years
D.	4.2 seconds
Answer» D. 4.2 seconds

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