original: It is 78% nitrogen and 21% oxygen, with trace amounts of water vapor, carbon dioxide and other gaseous molecules.
simplifications: It is 78% nitrogen and 21% oxygen, with small amounts of water vapor, carbon dioxide and other gaseous molecules. it has 78% nitrogen, 21% oxygen, with traces of water vapor, carbon dioxide, and other gas molecules. It is 78% nitrogen and 21% oxygen. It has a little amount of water vapor, carbon dioxide and other gaseous molecules. It is 78% nitrogen and 21% oxygen. It has trace amounts of water vapor, carbon dioxide and other gas-type molecules. It is 78% nitrogen and 21% oxygen, with a little water vapor, carbon dioxide and other molecules of gas. 78% nitrogen and 21% oxygen, with traces of water vapor, carbon dioxide and other gaseous molecules. It is 78% nitrogen and 21% oxygen with small amounts of other substances. It is made of 78% nitrogen, 21% oxygen with tiny amounts of water, CO2 and gas molecules. It's 78% nitrogen, 21% oxygen, and has low amounts of water vapor, carbon dioxide and other gaseous molecules. It is 78% nitrogen and 21% oxygen, with detect amounts of water vapor, carbon dioxide and some other gaseous molecules.