Atmosphere

The Atmosphere
Troposphere: This contains approximately 75% of the atmospheres mass. It's depth is around 17 km, and it contains 99% of the atmospheres water vapour and aerosols. The depth can fluctuate depending on where located, in tropical places it is around 20%, yet in polar areas it is only 7%. The troposphere has to do a lot with weather, and the higher you go up, the higher the density and air pressure goes up as well.


Stratosphere: The stratosphere is located above the troposphere and it extends about 50km up. This is the maximum height for aircrafts, and it is both drier and less dense than the troposphere. This layer contains a lot of man released chemicals that tend to stay for long periods of time, and there are little to no clouds because of low water vapour in the stratosphere.


Ozone Layer: The ozone layer is made up of three oxygen molecules (O3), whereas the oxygen we breath is made up of only two. In the stratosphere is located what we call “good ozone” and it blocks harmful UV rays. “Bad ozone” is in the troposphere, and damages humans, vegetation and plants.