The percent of oxygen is 27. this increases the natural percent of 21 by 6 percent causing living organisms to have too much oxygen.
The atmosphere would be much more volatile.
somr people may say not much but that's a lie hospital use pure oxygen for life support you can breathe in pure oxygen for 12 years strait and not die
35 percent
With life support, perhaps. Mars is much colder than Earth, has much less atmospheric pressure, and very little oxygen.
Mars' atmosphere is composed of only about 0.13% oxygen, with the majority being carbon dioxide (95.3%), nitrogen (2.7%), and argon (1.6%). This low oxygen level makes it uninhabitable for humans without life support systems.
The ocean typically contains about 21% oxygen dissolved in the water. This dissolved oxygen is essential for marine life to survive and thrive. Oceanic oxygen levels can vary based on factors such as temperature, salinity, and the presence of organisms that consume oxygen.
20.946% by volum.
Oxygen makes up about 21% of the Earth's atmosphere.
Oxygen makes up about 65% of the human body by mass.
Typically, the air you breathe is comprised of 18 to 21 percent Oxygen.
A small percent . exhaled air always contains oxygen .
Venus can not hold life because it doesn't have a hospitable environment like the Earth. The planet is too hot to maintain life and there is too much carbon dioxide and not enough oxygen either.