Trace gas Trace gas The most abundant gases in the atmosphere are nitrogen (78.1%), oxygen (20.9%), and argon (0.934%). Combined, oxygen, argon, and nitrogen make up 99.934% of the gases in the atmosphere (not including water vapor). The other gases that are not part of the 99.934% of the atmosphere are called trace gases. The abundance of a trace gas can range from a few parts per trillion (ppt) by volume to several hundred parts per million by volume (ppmv). When a trace gas is added into the atmosphere, that process is called a "source". There are two possible types of sources
Love Is the Sweetest Thing among others, have made recordings :- First introductory verse: Start of main refrain (nowadays "Verse One"): End of main refrain (nowadays "Verse Three"): For other works containing the phrase "The Sweetest Thing" see Sweetest Thing (disambiguation). Love Is the Sweetest Thing "Love Is the Sweetest Thing" is a popular song written in 1932 by British band leader and singer Ray Noble. Using guest vocalist Al Bowlly, Noble's recording was a big hit on both sides of the Atlantic, bringing Noble his first American success. It was published by Redwood Music. Like most compositions published in the period (commonly called Tin