When considering the bulk structure, which classification is used to define Uranus or Neptune as being 'most defined by ice overall'?
Answer
Their internal structure where ices constitute the primary bulk material of the planet.
The classification of Uranus and Neptune as Ice Giants is fundamentally based on their internal structure, where the mass of the planet is dominated by the dense, hot fluid layer composed of water, methane, and ammonia ices. This contrasts with Saturn, where hydrogen and helium dominate the bulk mass. Although Saturn displays the most visually obvious ice and dust feature (its bright rings), Uranus and Neptune are deemed 'most defined by ice overall' based on the proportion of these volatile compounds making up the majority of their planetary substance deep inside.
Related Questions
What characterizes the interior composition of Uranus and Neptune compared to Jupiter and Saturn?What specific volatile ices primarily constitute the hot, dense fluid mantle surrounding the core of Uranus and Neptune?What elements classify Saturn as a gas giant, similar to Jupiter, rather than an ice giant?What feature of Saturn is most closely associated with the description of ice and dust content?How do the volatile ices in the mantle of Uranus and Neptune exist under immense internal pressure and temperature?Why are Saturn's rings extremely bright and reflective when compared to the faint ring systems of Uranus and Neptune?What specific orbital characteristic distinguishes Uranus among the Ice Giants?What substances are included in the broad definition of 'ice' used in planetary science for the outer solar system giants?What characterizes the faint, dark rings of Neptune, contrasting with Saturn's bright structure?When considering the bulk structure, which classification is used to define Uranus or Neptune as being 'most defined by ice overall'?