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Correct Answer: Option A — Saturn. Saturn is correct because it is a gas giant. Saturn is also associated with the sixth planet from the Sun. A further identifying fact is that Saturn is has the most visually prominent ring system. Another useful fact is that Saturn is associated with its average density is lower than water. Why the other options are incorrect: Option B — Uranus: It is an ice giant and is associated with the seventh planet from the Sun; those are the identifying facts of Uranus. Option C — Neptune: It is an ice giant and is associated with the eighth planet from the Sun; those are the identifying facts of Neptune. Option D — Moon: It is Earth's natural satellite and is associated with orbits Earth; those are the identifying facts of Moon. Exam Takeaway: Link Saturn with “a gas giant” and “the sixth planet from the Sun” for quick revision.
