− | Ozone day Article shared by LP nayak sir GHS Kengeri bengaluru south [http://karnatakaeducation.org.in/KOER/en/images/8/87/Ozone_day_information_lpnayak.odt OZONE Day] | + | Ozone day Article shared by LP nayak sir GHS Kengeri bengaluru south [http://karnatakaeducation.org.in/KOER/en/images/8/87/Ozone_day_information_lpnayak.odt Ozone Day] |