Plants
They take in carbon dioxide
Then keep the carbon to grow
and give out oxygen
The atmosphere is 79.9% oxygen.
About 21% of the Earth's atmosphere is oxygen.
The main components of Earth's atmosphere are nitrogen and oxygen. Of these, oxygen is the one we can't live without.
The atmosphere is made up of lots of different gases. It is impossible to name all of them as there are some that we havent found yet. Hope this helps
Oxygen in the atmosphere primarily comes from photosynthesis by plants and other photosynthetic organisms. These organisms use sunlight to convert carbon dioxide into oxygen as a byproduct. Over millions of years, this process has led to the accumulation of oxygen in the Earth's atmosphere.
Oh yes. The troposphere is the lowest level of the atmosphere, the level that we live and breathe in, and it does have lots of oxygen in it, until you get to very high altitudes.
21% of the atmosphere is oxygen.
The atmosphere is 79.9% oxygen.
the environment which has the availability of oxygen it is called aerobic atmosphere and if the availability of oxygen is not there in atmosphere then it is anaerobic type We live in a aerobic atmosphere which has the oxygen available
No, there is no oxygen in Mercury's atmosphere because Mercury does not have an atmosphere.
Almost no oxygen, lots of CO2, still mostly nitrogen.
About 21% of the Earth's atmosphere is oxygen.
Plankton gives more oxygen to the atmosphere.
Animals remove oxygen from the atmosphere.
Yes, oxygen makes up 20.9% of the atmosphere.
Cyanobacteria make molecular oxygen in our atmosphere.
Mostly nitrogen and carbon dioxide, with lots of sulfa gasses as trace (plus water vapor).