Nearly 100% of air is gas. The rest is particulate matter: dust, pollen, and also tiny organisms.
calculate range of percentages
95%
40%
Add them together and divide by 4 (the number of percentages you had in the first place) It's just like averaging plain numbers
Joe shmoe
Gases in air are nitrogen about 79%, oxygen about 20% and other gases 1%
It is simpler because the amount of water vapor in the air can change.
Nitrogen - 78% Oxygen - 21% Carbon Dioxide - 0.04% Noble gases - 0.96%
It is simpler because the amount of water vapor in the air can change.
Air is made up of 78% nitrogen, 20.95% oxygen, 0.93% argon plus traces of other gases.
i don't know the percentages but i do know that hydrogen and helium are the 2 main gases! sorry this did not completely answer the question:(
Go to images.google.com and search for gases in the atmosphere.
The atmosphere of the earth is the layers of air that surround the Earth. They contain nitrogen, oxygen, carbon dioxide, water vapor, and small percentages of other gases.
Besides the gases that comprise air, air can also contain variable amounts of water vapor -- characterized by the term, "relative humidity." Because the amount of water vapor held in air can change, it is simpler and more sensible to express component gas percentages on the basis of dry air. Type your answer here...
Nitrogen (about 78%) and oxygen (about 21%).
Exhaled air will contain all of the gases in regular air, except that it will have higher percentages of carbon dioxide and lower percentages of oxygen. (It still will have oxygen, or CPR wouldn't work.) It will also have water vapor from our lungs. The main gas in inhaled and exhaled air is nitrogen. This is followed by oxygen, then carbon dioxide, then other gases. Yes, there is still more oxygen exhaled than carbon dioxide, but at a smaller percentage than was inhaled. Chances are that your teacher is looking for the gas, carbon dioxide, as your answer, since that is the product of cellular respiration that is disposed of in exhaled air, but it isn't the main component of exhaled air.
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