\n– Pair 1: ‘Annex-I Countries’ are a group of developed countries and economies in transition listed in Annex I of the *United Nations Framework Convention on Climate Change (UNFCCC)* and the *Kyoto Protocol*. These countries had committed to specific targets for reducing greenhouse gas emissions under the Kyoto Protocol. The Cartagena Protocol deals with biosafety (living modified organisms), not emission reduction commitments. Thus, pair 1 is incorrectly matched.
\n– Pair 2: ‘Certified Emissions Reductions’ (CERs) are emission reduction units generated through projects under the *Clean Development Mechanism (CDM)*, which is one of the flexible mechanisms defined in the *Kyoto Protocol*. The Nagoya Protocol deals with Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization, not emission reduction trading mechanisms. Thus, pair 2 is incorrectly matched.
\n– Pair 3: ‘Clean Development Mechanism’ (CDM) is indeed one of the flexible mechanisms established under the *Kyoto Protocol* to help Annex I countries meet their emission reduction commitments by undertaking emission reduction projects in developing countries. Thus, pair 3 is correctly matched.
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