How many different gases are there on earth?
Sam from Dorset (Aged 5-14)
Filed under: Answered Big Questions, Chemistry Big Questions, Rod Stevenson's Big Answers, age 5-14
How many different gases are there on earth?
Posted on March 14, 2008 by joannarooke
The gases on earth are found in our atmosphere. Most of it is nitrogen (78%) followed by oxygen (21%), argon(0.9%), carbon dioxide(0.03%), neon(0.02%),helium(0.005%),methane(.002%),krypton(0.001%), nitrogen dioxide(0.0005%),ozone(.0004%) and xenon(0.00007%). There are also smaller quantities of sulphur dioxide, CFC’s and other polluting gases. Levels of these gases and other gases will be larger in localised areas such as cities, volcanos and industrial sites.