First of all, what is ozone? Ozone is a gas which is produced when oxygen is exposed to ultraviolet light. It is the same gas that creates the protective ozone layer found in the earth’s stratosphere.
First of all, what is ozone? Ozone is a gas which is produced when oxygen is exposed to ultraviolet light. It is the same gas that creates the protective ozone layer found in the earth’s stratosphere.
First of all, what is ozone? Ozone is a gas which is produced when oxygen is exposed to ultraviolet light. It is the same gas that creates the protective ozone layer found in the earth’s stratosphere.
First of all, what is ozone? Ozone is a gas which is produced when oxygen is exposed to ultraviolet light. It is the same gas that creates the protective ozone layer found in the earth’s stratosphere.
First of all, what is ozone? Ozone is a gas which is produced when oxygen is exposed to ultraviolet light. It is the same gas that creates the protective ozone layer found in the earth’s stratosphere. 
