Atmosphere

The atmosphere consista of four different levels. These are the troposphere, stratosphere, mesoshpere, and thermosphere (ionosphere). All occcuring wether that we feel on the earhts surface forms in the troposphere. Wind and heat can mix in different ways to produce many different types of weather. Aproximately 99% of gasses in the atmosphere are in the troposphere. The stratospherre is where the the ozone layer is. The ozone layer is a sphere of oxygen (O3) and protects the earth by reflecting/deflecting solar radiation from touching the earths surface. The ozone layer also helps absorb heat, so the the earth doesn't freeze when it is turned away from the sun. The next layer is the mesosphere. This layer is the coldst layer in the atmosphere. This layer is meant to hold out meteriods from crashing into the earths surface. There is no pressure in this layer. The final layer is the thermosphere. It is also referred to as the ionosphere, because the only purpose is to keep out ultraviolet rays that can cause damage to the earth, and its other layers.