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2015-08-30T12:52:15+05:30
Ozone protects us from ultraviolet rays and even produces more oxygen to our earth...

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2015-08-30T12:54:59+05:30

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The ozone layer protect us from ultraviolet radiation
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i have opened google but i have not seen
really?
ok,then how you knew the answer which you didn't knew
i have just forgot but than i remembered it
then ok