Context: At high altitudes, Neptune's atmosphere is 80% hydrogen and 19% helium. A trace amount of methane is also present. Prominent absorption bands of methane exist at wavelengths above 600 nm, in the red and infrared portion of the spectrum. As with Uranus, this absorption of red light by the atmospheric methane is part of what gives Neptune its blue hue, although Neptune's vivid azure differs from Uranus's milder cyan. Because Neptune's atmospheric methane content is similar to that of Uranus, some unknown atmospheric constituent is thought to contribute to Neptune's colour.

Question: What is Neptune's atmosphere made of? 
Answer: 80% hydrogen and 19% helium

Question: Where are absorption bands of methane on Neptune? 
Answer: wavelengths above 600 nm

Question: What gives Neptune it's blue hue? 
Answer: absorption of red light by the atmospheric methane

Question: What planet also gets it's color from atmospheric constituent? 
Answer: Uranus

Question: What color is Uranus, compared to Neptune? 
Answer: cyan

Question: What is Neptune's atmosphere never made of?
Answer: Unanswerable

Question:  Where are absorption bands of oxygen on Neptune?
Answer: Unanswerable

Question:  What gives Neptune it's red hue?
Answer: Unanswerable

Question:  What planet doesn't get it's color from atmospheric constituent?
Answer: Unanswerable

Question:  What color is Jupiter, compared to Neptune?
Answer: Unanswerable