Storms | How air works
How air works
Storms all begin by the movement of air Gaseous mixture that envelopes Earth, composed mainly of nitrogen (about 78 percent) and oxygen (about 21 percent) with lesser amounts of argon, carbon dioxide, and other gases.. Air is made up of a mixture of different gases, mainly oxygen and nitrogen with about four times as much nitrogen. Air is constantly moving around as it changes temperatures. The movement of air causes wind. (For more details on how air works, see Air chapter.)
When air gets warmer its particles start to move about quickly and expand. The warm air particles take up more room in a given space. This makes the warm air rise because it is lighter than the air around it. Cooler air particles move closer together and take up less room. That makes cooler air heavier than the air around it and causes it to sink. As the Sun heats the air around...
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