In which year the Convention on Biological Diversity signed?

In which year the Convention on Biological Diversity signed? Correct Answer 1992

The Convention on Biological Diversity signed on 5 June 1992. It was signed in Rio de Janeiro. As of now there are 196 parties and 168 signatories are there. Secretary General of the United Nations is the depositary.
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For the convention on Biological Diversity which protocol was adopted?