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ELEMENT: OXYGEN ATMIC NUMBER : 8 TWO USES : BREATHING& OZONE IN THE ATOSPHERE IS PROTECTION AGAINST THE SUNS UTRAVIOLET RAYS.
IN THE ATMOSPHERE IS PROTECTIN AGAINST THE SUNS ULTRAVIOLET RAYS
JOSEPH PRIESTLY, CARL SCHEELE, AND LEONARDO DA VINCI DISCOVERD OXGEN AT ENGLAND, SWEDEN IN 1774
