Atmospheric Summary.

Water vapor and most other atmospheric gases are only thirty kilometers above the earths surface. Clouds are not a gas the are condensed vapor. The ozone is the primary ingredient of smog. Human and natural activities displace tiny soil, salt, and ash particles. Clouds are defined by shape and size. Winds are horizontal  waves not vertical.  Humidity is the amount of water vapor in the air. The airs ability to hold water depends on the airs temperature.