Elemental oxygen is normally found in the form of a diatomic molecule. however, in the upper reaches of atmosphere a molecule containing three atoms of oxygen is found, this would mean a formula of O3 and this is called ozone.
Unlike the normal diatomic molecule of oxygen, ozone is poisonous we are lucky that it is not stable nearer the earth's surface, but it performs an essential function where it is found. it absorbs harmful radiations from the sun. this prevents those harmful radiations from reaching surface of the earth where they may damage many forms of life.
Recently it is discovered that this ozone layer is depleting. Various man-made compounds like CFE (carbon compounds having both fluorine and chlorine which are stable and not degraded by any biological process) were found to persist in the atmosphere. Once they reached the ozone layer, they would react with the ozone molecules. this results in the reductions of ozone layer above Antarctica.
It is difficult to imagine the consequences for life on earth if ozone layer dwindles further, but many people think that if would be better not to take chances. These people advocate working towards stopping all further damage to the ozone layer. The main cause of ozone depletion and the ozone hole is manufactured chemicals Ozone depletion and the ozone hole have generated worldwide concern over increased cancer risks and other negative effects.
The ozone layer prevents most harmful UVB wavelengths of ultraviolet light (UV light) from passing through the earth’s atmosphere. These wavelengths cause skin cancer sunburn, which were projected to increase dramatically as a result of thinning ozone, as well as harming plants and animals. our ozone layer also gets damaged because of the gases by fridge and ACs (Air conditioner ) and we are cutting trees and driving motor cycles and car without getting them pollution check which is producing poisonous gases like carbon monoxide and carbon dioxide and destroying our environment and producing more and more pollution and soon makes our life hell which will expose us to harmful diseases like skin cancer etc.. so please if you are using AC and fridge our using and vehicle please use it in a very small quantity so you can use it in your future and your future will be a safe future.