2nd October 2019


How do you get pure oxygen?

The most common natural method is photo-synthesis, in which plants use sunlight convert carbon dioxide in the air into oxygen. This offsets the respiration process, in which animals convert oxygen in the air back into carbon dioxide. This method is called electrolysis and produces very pure hydrogen and oxygen.

Similarly, you may ask, what absorbs oxygen?

"Cobalt gives the new material precisely the molecular and electronic structure that enables it to absorb oxygen from its surroundings. But also divers may one day be able to leave the oxygen tanks at home and instead get oxygen from this material as it "filters" and concentrates oxygen from surrounding air or water.

What is the process that removes oxygen from the atmosphere?

The free H and N atoms escape into space leaving O2 in the atmosphere: Process of respiration and decay remove oxygen from atmosphere. During these mechanisms animals and bacteria consume oxygen and release carbon dioxide. Marine organisms create calcium carbonate shell material (CaCO3) that is rich in oxygen.
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