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Biology, 26.05.2020 02:04 dasan21

What is a light year?
the time it takes for light to reach Earth from the Sun
the distance light travels in one vear
the time it takes for light to travel around the Sun
the distance light can travel in a year before it burns out

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What is a light year?
the time it takes for light to reach Earth from the Sun
the distan...

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