Biology, 03.09.2021 22:20, caitlynnpatton1208
Why do astronomers use astronomical units (AU) instead of kilometers (km)?(1 point)
AU is used in astronomy, while km is used in physics.
There are no km in outer space, only AU.
Large distances are easier to express in AU than in km.
AU is used for spacing, while km is used for length.
Answers: 2
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Why do astronomers use astronomical units (AU) instead of kilometers (km)?(1 point)
AU is used in...
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