ancomfortable breathy systerm because when you breath oxygen in you body scienty say that human can breath 1% of nitrogen inorder to newtrories
Oxygen Please study this, & don't forget it so you don't have to keep looking up answers .
is it carbon dioxide
oxygen
Proteins contain nitrogen, which is not present in carbohydrates.
Man-made gases such as tear-gas, chlorinated hydrocarbons and their ilk. OXYGEN. That was made by plants, long after the Earth began. In fact, the first oxygen appearing in the atmosphere came from bacteria about 3.5 billion years ago.
Oxygen Please study this, & don't forget it so you don't have to keep looking up answers .
The atmosphere.
nothing will happen
The atmosphere; the Moon has none at all.
Oxygen was generally absent from the atmosphere during the Early Archean Era.
Of Earth's four major spheres atmosphere, hydrosphere, and biosphere are absent or nearly absent on the Moon. This prevents many of the natural processes we see on Earth from happening on the Moon.
Atmosphere
is it carbon dioxide
oxygen
It's what we breathe, Oxygen.
Proteins contain nitrogen, which is not present in carbohydrates.
Man-made gases such as tear-gas, chlorinated hydrocarbons and their ilk. OXYGEN. That was made by plants, long after the Earth began. In fact, the first oxygen appearing in the atmosphere came from bacteria about 3.5 billion years ago.