Part 1 of Essay
The deterioration of the ozone layer , caused by Cfcs, endangers the lives of humans'. Cfcs have a diminishing effect on the ozone layer. Furthermore, the deterioration of the ozone cause an increase of Ultraviolet (UV) radiation which can have a negative effect on human skin and eyes. As a writer for newsweek, I have ....

Part 2 of Essay
.... contains the oxygen that we breath and is where a majority of our weather takes place. Beyond the troposphere is the second region of the atmosphere, the stratosphere. The stratosphere extends from roughly 6.5-30 miles from the earth's' surface. The air on this region is much less dense than in the troposphere, and it's a lot drier. The stratosphere is the area that contains the majority of the ozone layer. Past the stratosphere is the mesosphere which extends to 50 miles above the planet. The last regi ....