The uv rays in stratosphere break the cfc into chlorine atoms.chlorine reacts with ozone and breaks into oxygen.as oxygen is helpful to man.why it is harmful?

Question

Andrew Armstrong · Accepted Answer

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The amount of oxygen produced in this way is small (compared to the 22% of our atmosphere that is oxygen). The problem is we need that layer of #O_3# to deal with the incoming UV light. It helps absorb some of that light and makes the suns rays less harmful for us (and plants). Without Ozone layer, too much UV gets through and can cause elevated cancer and reduced crops. The problem with chlorofluorocarbons (CFCs) is that they produce radicals that destroy the ozone layer.

Hannah Amos · Answer

undefined The depletion of ozone in the stratosphere leads to harmful effects because ozone plays a crucial role in absorbing and blocking harmful ultraviolet (UV) radiation from the sun. Excessive UV radiation can cause skin cancer, cataracts, and other health issues in humans, disrupt ecosystems, and harm marine life.