Which Solar System term is correctly associated with distinctive feature: “the shortest orbital period among the planets”, and also with “it has no natural satellite”?

Correct Answer: Option C — Mercury. Mercury is correct because it is the shortest orbital period among the planets. Mercury is also associated with it has no natural satellite. A further identifying fact is that Mercury is the shortest orbital period among the planets. Another useful fact is that Mercury is associated with it has no natural satellite. Why the other options are incorrect: Option A — Venus: It is the hottest planetary surface in the Solar System and is associated with it rotates in a retrograde direction; those are the identifying facts of Venus. Option B — Earth: It is liquid surface water supports known life and is associated with the Moon is its only natural satellite; those are the identifying facts of Earth. Option D — Mars: It is known as the Red Planet because of iron oxides and is associated with Olympus Mons is located on it; those are the identifying facts of Mars. Exam Takeaway: Link Mercury with “the shortest orbital period among the planets” and “it has no natural satellite” for quick revision.