Answer: <em><u>The compounds containing CFCs (chlorofluorocarbons) are mainly responsible for ozone layer depletion as these compounds react with ozone in the presence of ultraviolet rays to form oxygen molecule and thus, destroying ozone.</u></em>
Explanation: <em><u>Human activities cause the emission of halogen source gases that contain chlorine and bromine atoms. These emissions into the atmosphere ultimately lead to stratospheric ozone depletion. The source gases that contain only carbon, chlorine, and fluorine are called chlo- rofluorocarbons usually abbreviated as CFCs.</u></em>
Chlorofluorocarbons from the air conditioners are one of the main culprits responsible for ozone layer depletion, that react with the airborne particles in the presence of Sun's radiation breaking the ozone into oxygen atoms and as result creating large ozone hole over the planet.
Emission of harmful toxic gases of carbon monoxide and dioxide into the air through the vehicular exhaust also creates an atmosphere full of atmospheric black cloud.
Apart from this the various organism taking up O2 release methane a natural gas which can modify and trap this heat content on the earth burning of polybags and tires fossil fuels and coal also release other harmful gases which are considered to be reactive with the atmosphere.
