The historic Convention on Biological Diversity, ‘The Earth Summit’ was held in Rio de Janeiro in the year :
1985
1992
1986
2002
The correct option is Option 2) 1992.
The historic Convention on Biological Diversity, also known as "The Earth Summit," took place in Rio de Janeiro in the year 1992. The summit was officially called the United Nations Conference on Environment and Development (UNCED) and was held from June 3 to June 14, 1992.
During this summit, the Convention on Biological Diversity (CBD) was adopted, which is an international treaty aimed at promoting the conservation and sustainable use of biodiversity and the fair and equitable sharing of its benefits. The CBD has been ratified by numerous countries and is considered a key global framework for addressing biodiversity loss and environmental sustainability.
Therefore, the Earth Summit, where the Convention on Biological Diversity was established, occurred in Rio de Janeiro in 1992.