CFC'S or Chlorofluorocarbons are molecules which demolish the ozone layer. The ozone layer is made up of O3 or ozone molecules these reflect UV rays (harmful ultra violet ligh … t) the CFC'S smash up the O3 into O2 molecules (the type we breathe) these do not reflect UV so we suffer.UV is radiation and increases the chances of skin cancer.he ozone layer is made up of O3 or ozone molecules these reflect UV rays (harmful ultra violet ligh … t) the CFC'S smash up the O3 into O2 molecules (the type we breathe) these do not reflect UV so we suffer. UV is radiation and increases the chances of skin cancer.