Question

which treaty was adopted at the earth summit held in 1992 at brazil

Answer 1

conservation of biodiversity was adopted

Answer 2

The Correct Option is 2: Conversation of Bio Diversity.

Explanation :

The Third meet of United Nations Conference on sustainable development [UNSD]  declaration was held in Rio-de-Janeiro in Brazil in the year 1992.
Hence it is called as RIO- declaration. As 150 countries attended the meet it is also called as Earth Summit..

Point of discussion Held---- Environmental related problems.

At summit, it was resolved to adopt :
1. The convention on bio diversity and convention on reducing green house  effect gases.