In Earth’s atmosphere, only 21 per cent is oxygen
The Earth’s 78 per cent atmosphere comprises nitrogen, whereas 21 per cent is oxygen. And who is credited with producing this 21 per cent oxygen? Trees that are visible to us.
However, that is not the case. Out of this 21 per cent oxygen, only 28 per cent is produced by trees. The next question is, who or what produces the remaining 72 per cent of oxygen?
Rainforests, or the trees visible to us on land, produce 28 per cent of Earth’s oxygen.
The remaining 72 per cent of oxygen is produced by marine plants. In short, the oxygen comes from the ocean.
As per the NASA Observatory, phytoplankton produces the most oxygen and absorbs carbon dioxide to the maximum.
Of all the phytoplankton, Prochlorococcus is the hero that releases the maximum amount of oxygen. In fact, for every five breaths we take, oxygen for at least one is produced by Prochlorococcus.
Last but not least, did you know that an average human consumes 740 kilograms of oxygen per year, equivalent to 7-8 trees?
