Atmosphere ES5 10.08

TroposphereAirplanes without

pressurized cabins.

Satellites orbiting in space (no atmosphere).

Jet airplanes with pressurized cabins.

The highest clouds

The atmosphere is a mixture of different molecules of gas.

The lower we go into the atmosphere the more densely the molecules of gas are pressed together.

Air molecules have weight. At lower elevations there is more air pressure.

(mostly CO2)