RE: Ozone layer continues its deterioration.

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laithsharba (25)in #steemstem • 7 years ago

tow years ago I asked my teacher why the ozone hole over Antarctica
thank you for sharing this amazing post

7 years ago in #steemstem by laithsharba (25)

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davidchapy (43) 7 years ago (edited)

Thank you for reading me my friend!!!

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