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Question: Answered & Verified by Expert
The international treaty of Montreal Protocol became effective in the year of
BiologyEnvironmental IssuesNEET
Options:
  • A 1989
  • B 1999
  • C 1889
  • D 1987
Solution:
1010 Upvotes Verified Answer
The correct answer is: 1989
The Montreal Protocol is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion. It was agreed on 16th September 1987, and entered into force on 1st January 1989.

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