Friday, May 10, 2013


The ozone layer is a layer in Earth's atmosphere containing relatively high concentrations of ozone (O3). The ozone layer can be depleted by free radical catalysts, including nitric oxide (NO), nitrous oxide (N2O), hydroxyl (OH), atomic chlorine (Cl), and atomic bromine (Br)

The ozone layer spreads like a sheet in earth's atmosphere. The sun's rays consists of most of the rays other than the visible part. It specially consists of UV and IR rays. Among them UV [ultra violet rays] is the most harmful one to human skins. It causes skin diseases in contact with human skin. The main function of ozone layer is to filter these UV rays from the sun and so protecting life. Though it is a poisonous gas

But the cloroflurocarbon CFC gas from the refrigerators affect the ozone layer which results in several holes in the layer