Nitrogen is relatively inert and so will stay stable in the atmosphere. Oxygen on the other hand, is very reactive and is also in a constant cycle of being removed from the atmosphere by cellular respiration and replenished by photosynthesis. The higher concentration of oxygen in the atmosphere, the more likely it is to react with something, which will deplete the amount. Currently, the air is about 21% oxygen, but has reached levels as high as 35% during different periods.
Definitely the 20% oxygen because there is less of it and the solute is always the lesser amount.
80% nitrogen, 20% oxygen however it's really 79% plus some decimals of nitrogen and 21% oxygen and a little moisture. But if the question is only looking for a basic answer, just use the top answer.
Around 80% of air we breath is nitrogen.
No, it actually makes up around 80% of the air around us.
Air is a mixture of about 80% nitrogen, and about 20% oxygen, with small amounts of other substances (such as carbon dioxide and water vapor).
Nitrogen, you can't survive on it obviously but you breath it in every day it is the most abundant gas in the atmosphere followed by oxygen I think.
About 80% of air is nitrogen (20% oxygen)
Nitrogen
Air is approximately 80% Nitrogen, 19% oxygen and 1% others
Nitrogen
About 80%
you breathe in more nitrogen then oxygen because there is 78% n in the air and 21% o in the air
none of them are solutes
Air is roughly 80% Nitrogen and 20% Oxygen.
These gases are nitrogen, oxygen and argon.
Not exactly. You're referring to nitrogen, and you should have said "78 percent of air is made up of this".
Air is made up of 80 percent nitrogen and 20 percent oxygen. The boiling points of these elements are different: oxygen's boiling point is minus 297 degrees Fahrenheit and nitrogen's is minus 320 degrees Fahrenheit