Question : One Astronomical Unit and one Parsec are units of________.
Option 1: current
Option 2: mass
Option 3: length
Option 4: volume
Correct Answer: length
Solution : The correct answer is the length .
The astronomical unit of measurement used to calculate the separation between celestial objects is the parsec (symbol: pc). Similar to how kilometres can be used in place of miles, astronomers frequently use parsecs as an alternative to light-years when measuring distance.
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