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the air is a mixture mainly of Nitrogen, around 80%, and a mixture of other gases including Oxygen and Carbon Dioxide (CO2). Only the oxygen is required for human breathing purposes, so you take in about 5 times the quantity of air as you need in order to get your oxygen supply. When the oxygen is used for 'internal combustion by the body's muscles, the by product is carbon dioxide which becomes part of the air you breath out.
Plants don't actually breath but absorb CO2 in the process of photosynthesis, which requires light to operate, at which point the plant will release oxygen, but during the dark hours, it uses oxygen and puts out CO2.
What else can I help you with?
How many percent of oxygen did you breathe?
On average, humans breathe in about 21% oxygen from the air.
Do we breathe oxygen or O2?
We breathe in oxygen, which is in the form of O2 molecules.
How much oxygen is in the air we breathe?
About 21% of the air we breathe is oxygen. The other major components are nitrogen (about 78%) and trace gases like argon, carbon dioxide, and others.
How much oxygen and carbon dioxide is the air that we breathe out?
The air we breathe out contains about 16% oxygen and 4% carbon dioxide. The rest is mainly nitrogen and trace amounts of other gases.
What percentage of the air you breathe oxygen?
Around 21% of the air you breathe is oxygen.
How much oxygen do you breathe in?
20%
Do you breathe in or breathe out oxygen?
Humans breathe in oxygen and breathe out carbon dioxide. Trees "breathe" out oxygen.
When exercsing how much oxygen do you breathe out?
The same amount you wil just breathe in more often
How much percent of oxgyen you breathe?
Typically, the air you breathe is comprised of 18 to 21 percent Oxygen.
Do you breathe in oxygen or carbon dioxide?
You breathe in oxygen.
Why is there so much oxygen in the living human body?
because without oxygen you cant breathe.
How much oxygen does grass produce in a day?
Grass produces about half of the oxygen we breathe in a day.
Do you breathe in oxygen?
Yes you do. See we breathe in oxygen and we breathe out carbon dioxide. Plants are the opposite. They breathe in carbon dioxide and breathe out oxygen. We give them carbon dioxide and they give us oxygen!! That's how we breathe!!!!!!!
How many percent of oxygen did you breathe?
On average, humans breathe in about 21% oxygen from the air.
How much of the air you breathe out is oxygen?
Around 16% of the air you breathe out is oxygen. This percentage decreases from the 21% of oxygen in the air you inhale due to the exchange of gases that occurs during respiration.
What do you breathe when you breathe out?
Humans breathe out carbon dioxide, the whole world runs in a motion, for example plants breathe carbon dioxide, we breathe in oxygen. Even fish breathe oxygen. They take the oxygen out of the water. So we breathe in what plants breathe out and plants breathe in what we breathe out.
Where do lugs get oxygen and release carbon dioxide to?
when you breathe in, you breathe in oxygen and when you breathe out, its carbon dioxide
