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Mathematics 13 Online
OpenStudy (anonymous):

What is a light-year? A. the distance light travels in one earth year B. the distance light travels from the sun to the earth C. the distance light travels in one orbit of the moon D. the time it takes light to travel across the universe

OpenStudy (welshfella):

Hint - its a distance.

OpenStudy (welshfella):

- the word year should give it to you

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