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trasher [3.6K]
3 years ago
15

Define light- year and explain how and why light- years are used to measure distances in the universe

Geography
1 answer:
rewona [7]3 years ago
3 0
A unit of astronomical distance equivalent to the distance that light travels in one year .....and because it is the fastest way to measure in a very long distances for example earth to other far away planets
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