Ozone layer depletion
By abishek
@abishek (3)
India
November 9, 2006 10:09pm CST
Here the most imoportant source which is helpfull to the very survival of living being s is being depleteing by the day.
Its prevents the harmful ultra violet rays from reaching the ground of earth which causes cancer.
And it also helps in breaking of OZONE-on sunlight-OXYGEN
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