Due to ozone depletion the harmful UV radiations enter the earth and cause a number of problems. Some of them are:
1) UV radiations cause skin cancer,eye cataract and suppression of immune system.
2) Photoplankons, the base of most of the food chains are destroyed by these radiations.
3) Ozone depletion leads to Global Warming which increases the global temperature of the surface of earth.
Everyone will die.
See "What are the causes and effects of ozone layer depletion?"
Ozone depletion is caused by CFC's. They react with ozone to deplete it.
To lessen the depletion, curb CFC's. They cause ozone depletion.
Depletion of ozone has many causes and effects. The UV entering is the main.
The possible cause of ozone depletion is CFC. It causes UV to enter the earth.
See "What are the causes and effects of ozone layer depletion?"
Ozone depletion causes UV rays to enter. These can damage life on earth.
Ozone layer depletion causes UV to enter. We must protect ourselves from its harmful actions.
Pollution
Ozone depletion causes skin cancer. It could also cause eye cataract.
Planktons are affected the most. Ozone depletion destroys them.