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Biology, 10.06.2021 01:00 kellyroy74

4. Distances in space involving galaxies and distant stars are too large to work with using common units. Which of the following correctly describes a unit astronomers most commonly used to measure such large distances in space?
The distance light travels in a year.
The distance across the Milky Way galaxy.
The distance Earth travels in its orbit around the Sun.
The distance across the solar system.

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