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Gases in air are nitrogen about 79%, oxygen about 20% and other gases 1%
Percentages are percentages - simple! The marketing people have not yet come up with "new improved" percentages.
An Actuary.
The answer depends on what you are trying to do with the percentages.
Any graph can use percentages.
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:(
oxygen
Showing the amount of gases in the atmosphere as percentages of dry air allows for easy comparison and analysis of the composition of the atmosphere. Since the composition of dry air is relatively stable, expressing the gases as percentages of dry air helps to standardize the data for scientific purposes.
Nitrogen (about 78%) and oxygen (about 21%).
Gases in air are nitrogen about 79%, oxygen about 20% and other gases 1%
Most people work with percentages in one way or another.
line graph
Cirle Graph.
Ambient air is about 21% Oxygen, 78% Nitrogen and 1% Mixed Gasses. Our body uses about 4% Oxygen to stay alive so what comes out is 17% Oxygen and 4% Carbondioxide.
When parts out of a hundred are required.
Mainstream smoke is a combination of inhaled and exhaled smoke after taking a puff on a lit cigarette. The composition of mainstream smoke is affected by how the smoker inhales and exhales, so it will vary from person to person. The frequency of puffs, duration and volume all contribute to the makeup of mainstream smoke
A pie chart with the percentages of nitrogen, oxygen, and other gases in the Earth's atmosphere typically shows nitrogen at around 78%, oxygen at roughly 21%, and other gases like argon, carbon dioxide, and neon making up the remaining 1%. Each segment of the pie chart represents the proportionate amount of each gas in the atmosphere.