Jupiter and Saturn are mostly made of atmosphere, with Jupiter's atmosphere consisting mostly of hydrogen and helium, while Saturn's atmosphere is also primarily composed of hydrogen and helium, with traces of other elements.
Earth's atmosphere is mostly made up of nitrogen and oxygen; but the planet itself is more than just its atmosphere - overall Earth, like other terrestrial planets, is mostly made from rock (silicates) with a nickel-iron core. (By comparison, overall the outer gas planets are mostly made from hydrogen and helium.) By relative abundance, oxygen is also the most common element in the Earth's crust.
Jupiter's atmosphere
Planet Earth - about 80%.
The Moon does have a thin atmosphere, but it is extremely sparse compared to Earth's atmosphere. It consists mostly of helium, neon, and hydrogen, and its exosphere extends about 6,000 kilometers above the Moon's surface.
No, Earth's atmosphere is mostly composed of nitrogen (about 78%) and oxygen (about 21%). Hydrogen makes up a very small fraction of Earth's atmosphere, less than 0.1%.
peroxide and hydrogen.
No. Earth is the only known planet with a breathable atmosphere. Saturn's atmosphere consists mostly of hydrogen and helium.
Neptune (NovaNet) There's something wrong here. Neptune is mainly a hydrogen atmosphere. Earth is the planet with a mainly nitrogen atmosphere, but the coldest is Neptune.
The outermost layer of Earth's atmosphere is the exosphere. This layer is where the atmosphere is the thinnest, gradually transitioning into space. The exosphere is composed mostly of hydrogen and helium atoms.
There is oxygen in the atmosphere of Saturn, but it is only a tiny fraction of the deep atmosphere, which is mostly hydrogen. It is not in a usable form as is oxygen on Earth.
Earth's first atmosphere was mostly a mixture of gases such as hydrogen, helium, methane, and ammonia. Over time, volcanic activity released gases like carbon dioxide and water vapor, which changed the composition of the atmosphere.
Mostly hydrogen and helium.
Jupiter and Saturn are mostly made of atmosphere, with Jupiter's atmosphere consisting mostly of hydrogen and helium, while Saturn's atmosphere is also primarily composed of hydrogen and helium, with traces of other elements.
Earth's atmosphere is mostly made up of nitrogen and oxygen; but the planet itself is more than just its atmosphere - overall Earth, like other terrestrial planets, is mostly made from rock (silicates) with a nickel-iron core. (By comparison, overall the outer gas planets are mostly made from hydrogen and helium.) By relative abundance, oxygen is also the most common element in the Earth's crust.
Jupiter's atmosphere
Mostly hydrogen and helium.