Ozone is a form of oxygen with the chemical formula O3. Ozone is different from oxygen (O2). Oxygen is an important gas for all living organisms whereas ozone is a toxic and explosive gas. Ozone is formed in the upper atmosphere of the Earth by ultraviolet radiation. This radiation splits oxygen molecules into single atoms. These atoms join with oxygen molecules and form a complex of three-oxygen atoms, known as ozone. Ozone accumulates and forms a layer from 19 to 35 kilometres above the Earth. This layer is called the ozone layer.
What is Ozone?
