Theoretically none. The Earth has an atmosphere comprised of mainly nitrogeon 78% and oxygen 21% and as far as we know it is the only planet.
That planet is Earth.
Earth. It's the only planet with significant amounts of oxygen in the atmosphere, making up about 21%.
Earth is the planet that fits this description. It contains approximately 70% water on its surface and its atmosphere is primarily composed of nitrogen, with oxygen being the second most abundant gas.
The planet you're referring to is Earth. It has a rocky surface and its atmosphere is composed primarily of nitrogen (78%) and oxygen (21%). Earth also has one natural moon, which is simply called the Moon.
Approximately 20 percent of the Earth's atmosphere is made up of oxygen.
That planet is Earth.
Earth's atmosphere is made up of 78% nitrogen and 21% oxygen. The other 1% is other gases.
Approximately 21% of Earth's atmosphere is made up of oxygen.
Mercury has a temporary atmosphere made up of oxygen, helium and sodium. It's atmosphere is also thin which also has particles of hydrogen, argon and potassium.
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.
The atmosphere is made up of 71% nitrogen and 28% oxygen. The other 1% is mostly made up of the noble gas argon.
Earth. It's the only planet with significant amounts of oxygen in the atmosphere, making up about 21%.
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
Earth is the planet that fits this description. It contains approximately 70% water on its surface and its atmosphere is primarily composed of nitrogen, with oxygen being the second most abundant gas.
Nitrogen_____________________________________________________________________Our atmosphere is about 78% nitrogen and 21% oxygen. The remaining 1% is made up of a number of trace gases.
About 21 of the Earth's atmosphere is made up of oxygen.