Which Solar System term is correctly associated with important fact: “methane contributes to its blue-green colour”, and also with “an ice giant”?

Correct Answer: Option D — Uranus. Uranus is correct because it is methane contributes to its blue-green colour. Uranus is also associated with an ice giant. A further identifying fact is that Uranus is it rotates with an extreme axial tilt. Another useful fact is that Uranus is associated with methane contributes to its blue-green colour. Why the other options are incorrect: Option A — Neptune: It is Triton is its largest moon and is associated with an ice giant; those are the identifying facts of Neptune. Option B — Moon: It is its gravity is the main cause of ocean tides and is associated with Earth's natural satellite; those are the identifying facts of Moon. Option C — Asteroid belt: It is it did not form into a planet largely because of Jupiter's gravity and is associated with a region containing many rocky minor bodies; those are the identifying facts of Asteroid belt. Exam Takeaway: Link Uranus with “methane contributes to its blue-green colour” and “an ice giant” for quick revision.