Ambient air (the air you breathe in) contains about 21% oxygen and about 380 ppm carbon dioxide. This changes slightly summer to winter, downwind of green vegetation during the day and in buildings.
21% inspired 17% expired, this may vary slightly however it is always a 4% gap.
alveolar air mixes with air in the anatomic dead space on its way, which is rich in oxygen.
hence % of oxygen is more in expired air.
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Nitrogen - 78% Oxygen - 21% Carbon Dioxide - 0.04% Noble gases - 0.96%
Because your body consumes the oxygen and generates carbon dioxide as a waste product. Extracting oxygen and emitting carbondioxid is what the lungs are for.
Carbon dioxide is the product; oxygen and carbon are the reactants.
No. Carbon dioxide is a chemical compound of carbon and oxygen.
When carbon reacts with oxygen to form carbon dioxide, carbon dioxide is the product of the reaction.
These gases are: nitrogen (78,084 %), oxygen (20,9476 %), argon (0,934 %), carbon dioxide (0,0314).
Oxygen-Carbon Dioxide Cycle- a continuous exchange of oxygen and carbon dioxide by plants and animals including human
During photosynthesis, carbon dioxide and oxygen are exchanged. The plant uses the carbon dioxide for the photosynthesis and expels oxygen.
the modern atmosphere is composed of 78% of nitrogen, 21% of oxygen, 0.9% of argon and 0.037% of carbon dioxide.
Oxygen-Carbon Dioxide Cycle- a continuous exchange of oxygen and carbon dioxide by plants and animals including human
Oxygen-Carbon Dioxide Cycle- a continuous exchange of oxygen and carbon dioxide by plants and animals including human