Task: Text Categorization
Input (English): This compound converts oleic acid into azelaic acid, and its attacks on double bonds in polymers leads to namesake "cracking" of materials like rubber. This compound is produced in the Chapman cycle, and its concentrations are measured in Dobson units. The Greek origin of its name reflects the fact that it is produced in(*) lightning storms. Chlorofluorocarbons have caused atmospheric levels of this compound to drop, creating a hole over the Antarctic. For 10 points, name this triatomic oxygen compound that forms a layer which absorbs ultraviolet radiation.
Output (English): Science