The Atmosphere

There are five layers of our atmosphere. these layers are divided based on temperature changes, chemical composition, and the density.

Troposphere-bottom layer (0-11km). We live in this layer, all weather occurs here. Air in this atmosphere becomes thinner with height because gases decrease, and temperature also decreases with altitude.

Stratosphere-second layer (11-50km). The temperature increases as a result of ozone absorbtion of the suns UV rays. There is little to no water vapor. The OZONE and jet streams are found here.

Mesophere-third layer (50-90km). The temperature drops to about -130F. Air pressue here is very low.

Thermosphere-fourth layer (90-500km). Warmest layer of the atmosphere, about 2700F. Auroras occur here! (Auroras are similar to the northern lights.)

The last layer is the Exosphere, but we have not studied this layer.