Q:
      
      
         
            
Depletion of ozone layer is caused by
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: D) All of the above         
         
Explanation: Ozone layer depletion is one of the most serious problems faced by our planet earth. Substances that Deplete the Ozone Layer (ODS) emission are responsible for ultraviolet radiations from the sun break them to release chlorine (from CFCs) and bromine (from methyl bromide and halons).
       
      
      
      
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