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Standing outside with no telescope, how many planets besides Earth could the ancients pick out?
AFive of them
BSeven of them
CThree of them
DFour of them
Answer & Solution
Correct answer: A. Five of them
1. Mercury, Venus and Mars were among them.
2. Jupiter and Saturn complete the list.
3. There were five of them.
_Source: OpenStax Astronomy 2e, Chapter 7, Other Worlds: an Introduction to the Solar System._
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