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It's what we breathe, Oxygen.
The atmosphere; the Moon has none at all.
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.
What is the most Abundant gas are in the Atmosphere
The atmosphere is made of gas molecules.
Oxygen was generally absent from the atmosphere during the Early Archean Era.
oxygen
It's what we breathe, Oxygen.
The atmosphere.
prokaryotaes either have primitive(not complete) nucleus or nucleus is totally absent.
Yes. The air is never clean.
Oxygen Please study this, & don't forget it so you don't have to keep looking up answers .
free oxygen
The atmosphere; the Moon has none at all.
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.
ancomfortable breathy systerm because when you breath oxygen in you body scienty say that human can breath 1% of nitrogen inorder to newtrories
There was an ozone atmosphere on primitive Earth, but not an ozone layer which was formed further on. The primitive atmosphere on the surface of the Earth mostly composed by ozone was pushed upwards by the oxygen formed by dead organisms. That primitive ozone atmosphere on the surface of the Earth protected the forming microorganisms from the UV radiation. JamesWest09