What is the role of MnO2 in a dry cell?

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  1. #charcoal
  2. #manganese
  3. #dioxide
  4. #hydrogen
  5. #reduces
  6. #performance
  7. #function
  8. #absorbing
  9. #produced
  10. #resistance
  11. #internal
  12. #improves
  13. #present