The air we breathe is a mixture of different gases made up of 78.1% (by volume) nitrogen, 21% oxygen, 0.9% argon, and 0.04% ...

Gases will fill a container of any size or shape evenly. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. According to the educational ...

It lets you, for example: -- Click near Macon, Ga., and home in on the nation's largest single-point source of greenhouse gases: the Scherer power plant (actually four huge coal-burning facilities).