What is an astronomical unit (AU)?

the distance of the Moon from Earth
the distance of the Earth from the Sun
the distance of the Moon to the Sun
None of the above
The astronomical unit (AU) represents the mean distance between the Earth and our sun. An AU is approximately 93 million miles (150 million km). It’s approximately 8 light-minutes.
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Answers by country

the distance of the Moon from Earth
the distance of the Earth from the Sun
the distance of the Moon to the Sun
None of the above
answers
flagthe Netherlands
6%
86%
6%
0%
15
flagFrance
8%
83%
0%
8%
12
flagGermany
11%
80%
4%
4%
45
flagIndia
11%
68%
6%
12%
181
flagthe United States
15%
68%
6%
8%
104
flagthe United Kingdom
10%
68%
10%
10%
60
flagSpain
30%
60%
0%
10%
10
flagPoland
16%
59%
5%
16%
12122
flagPakistan
36%
54%
0%
0%
11
flagAustralia
17%
53%
21%
7%
28
flagGreece
21%
42%
21%
14%
14
flagAustria
40%
30%
0%
30%
10