Wind

Today, I learned that wind is created by the flow of air from an area of high pressure to an area of low pressure due to changes in heat.  The rotation of the earth on its axis is the reason wind circulates in a spiral motion between high and lower pressure areas.  A low pressure area is created by the rising of a warmer, less-dense air mass away from the earth's surface.  And conversely, a high pressure is created by the colder, more-dense air falling down to the surface, replacing the warm air.  :)  Now, to figure out why the oceans are salty.