gases
Uranus
They are what makes up the planet's atmosphere.
Helium makes up most of Neptunes atmosphere, and some within Uranus. It is this helium that gives Neptune it's blue hue.
You could not build a fire in the normal way on the planet Uranus since there is no oxygen in the atmosphere of that planet. However, if you were on Uranus, in your sealed spaceship with its own breathable atmosphere, and you wanted to build a fire there (which would probably be a terrible idea since it would use up your oxygen supply) that would be possible.
There is more methane gas in the highest levels of Neptune's atmosphere than there is on Uranus, this makes Neptune appear blue. Most of the gas in Neptune's atmosphere is hydrogen and helium. The atmosphere is stormier than that of Uranus because the inside of the planet is warmer, which stirs up the gas. Neptune also has ice particles in the atmosphere and ammonia deposits from the exposed molten ammonia core.
Neptune. That is why it has it's bluish color.
Planet Earth - about 80%.
The planet Uranus has faint rings, and the planet is tilted so the axis is nearly parallel to its orbit. The planet is a gas giant, which means that the planet is made of gases. And finally, the atmosphere is made up of hydrogen and helium.
The core of planet Uranus is made up of water.
The three primary gases that make up the atmosphere of Uranus are hydrogen, helium, and methane. Hydrogen is the dominant gas, followed by helium, while methane makes up a smaller but significant portion of the atmosphere.
My atmosphere is the same as your atmosphere since we all live on the same planet. Oxygen makes up about 19.5% of the atmosphere.
Carbon Dioxide