Identify two pollutants, and one source of each that cause depletion of the ozone layer.?

none proven all the "culprits" claimed to have damaged the ozone layer are denser than the oxygen and nitrogen in the air so would not reach the ozone layer, solar activity however has a huge effect on how much ozone is created and the more ozone that is created the bigger the "hole " over the poles as less radiation then gets through to polar regions at the altitude of the ozone layer