What has the ozone layer got to do with the atmosphere?
The ozone layer is in the upper part of the stratosphere, so a part of the atmosphere. http://www.upei.ca/~physics/p261/project… It is 40 – 50 km thick and holds 90% of the earths ozone. It’s there because gases of different densities naturally form distinct layers and because Ultra violet light from the sun created ozone (O3) from regular oxygen (02) at this height. The ozone layer is an important part of the atmosphere because it blocks a lot of the UV radiation from reaching earth. High velocity winds in the stratosphere mean that the thickness of the ozone layer varies a lot, it is thickest at the equator and thinnest at the poles. This is why holes on the ozone occur over the poles, even though ozone thinning is detected everywhere. This thinning is attributed to man made gases (like CFC’s) that diffuse into the upper atmosphere and break up the ozone molecules, tipping the balance in the na
