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grigory [225]
4 years ago
12

What is a light-year?

Biology
1 answer:
ch4aika [34]4 years ago
4 0

Answer:

The answer is (a)

Explanation:

a light year is a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 trillion miles).

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