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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

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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1 vote
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

User Kamahire
by
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2 Answers

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a unit of astronomical distance equivalent to the distance that light travels in one year,
User Mande
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7.8k points
4 votes
The term light year refers to the distance light travels in a year. 
User Jahroy
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9.1k points
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