why is the ozone hole in the ozone layer present only above antartica ,inspite of no pollution in antarctica.......

The ozone hole is caused by the effect of pollutants in the atmosphere destroying stratospheric ozone. During the Antarctic winter something special happens to the Antarctic weather. Firstly, strong winds blowing around the continent form, this is known as the "polar vortex" - this isolates the ai

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It may due to more ice, Because you know one thing that, If you open your Refrigerator, you can find some amount of smoke type particle will mixed with air, it will be the reson behind ozone hole also.