Which Solar System term is correctly associated with classification: “a terrestrial planet”, and also with “the third planet from the Sun”?

Correct Answer: Option A — Earth. Earth is correct because it is a terrestrial planet. Earth is also associated with the third planet from the Sun. A further identifying fact is that Earth is liquid surface water supports known life. Another useful fact is that Earth is associated with the Moon is its only natural satellite. Why the other options are incorrect: Option B — Mars: It is a terrestrial planet and is associated with the fourth planet from the Sun; those are the identifying facts of Mars. Option C — Jupiter: It is a gas giant and is associated with the fifth planet from the Sun; those are the identifying facts of Jupiter. Option D — Saturn: It is a gas giant and is associated with the sixth planet from the Sun; those are the identifying facts of Saturn. Exam Takeaway: Link Earth with “a terrestrial planet” and “the third planet from the Sun” for quick revision.