jerlin1103 jerlin1103

28-02-2018
Biology

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What is a light year?
a. A measure of time in space
b.The distance light travels in a year
c.The distance to Alpha Centauri
d.A term used only in science fiction

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thekingofguns65 thekingofguns65

28-02-2018

The term light year refers to the distance light travels in a year.

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28-02-2018

a unit of astronomical distance equivalent to the distance that light travels in one year,

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