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Conservation of ozone depletion was discussed in the following protocol:

  1. A
    Montreal
  2. B
    Delhi
  3. C
    Tokyo
  4. D
    Rio de Janeiro

Solution & Step-by-step Explanation

The Montreal Protocol on Substances that Deplete the Ozone Layer is a landmark international environmental treaty agreed upon in 1987 to protect the ozone layer by phasing out the production of ozone-depleting substances.

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Conservation of ozone depletion was discussed in the following protocol:
A
Montreal
B
Delhi
C
Tokyo
D
Rio de Janeiro

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