Total mass of the atmosphere is about 5.5 quadrillion tons, of which oxygen is close to 20%, or 1.1 quadrillion tons. 1.1e+15 tons.
Together about 5 thousand trillion tonnes. About 1 thousand trillion tonnes is oxygen and 4 thousand trillion tonnes is nitrogen.
0.01 percent of the worlds oxygen is from the amazon
Air is approximately 20% Oxygen.
Contrary to popular secular belief, tree's don't actually produce the majority of the worlds oxygen, in fact, approximately 91.6% of the worlds oxygen is produced by phytoplankton blooms in the northern hemisphere of the ocean.
About 20%
Yes, there is oxygen in the atmosphere of Mars, but it is present in very low concentrations, about 0.13%. This is much lower compared to Earth's atmosphere, which is around 21% oxygen.
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
32% the of the atmosphere is Argon, Oxygen and Other stuff
21% Oxygen, 78% Nitrogen, 1% other gasses in out atmosphere.
20.946% by volum.
Photosynthesis, which is the process by which plants and other organisms convert carbon dioxide and sunlight into oxygen and glucose, is responsible for producing much of the oxygen in Earth's atmosphere. This process is crucial in maintaining the balance of gases in the atmosphere and supporting life on our planet.