Earth has an atmosphere of 78.08% Nitrogen and 20.95% Oxygen, with 0.93% Argon and 0.038% Carbon Dioxide. Around 1% of the atmosphere is water vapour, with traces of other gases such as Neon, Xenon and Carbon Monoxide.
Planet Earth - about 80%.
No. No. The only planet n contact with Earth's atmosphere is Earth itself.
Earth is the only known planet with an oxygenated atmosphere.
The earth is the largest planet in our atmosphere. Jupiter is the largest planet in out solar system.
No. There is not another planet inside Earth.
We are adapted to breathing and living in Earth's atmosphere. A planet would need to have an atmosphere similar to that of Earth for people to find it livable.
Earth
It is none other than our own planet Earth, which has nitrogen and oxygen in its atmosphere.
No. Mercury essentially has no atmosphere. Earth is the only planet with an atmosphere that humans can breathe.
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 Earth has an atmosphere of 78% nitrogen (and 21% oxygen).
Earth