A. Buenos Aires
B. Rio De Janeiro
C. Dar-es-Salam
D. None of these
✅ The correct answer is option B.
In 1992, more than 100 heads of state met in Rio de Janeiro, Brazil for the first international Earth Summit convened to address urgent problems of environmental protection and socio – economic development.
In 1992, more than 100 heads of state met in Rio de Janeiro, Brazil for the first international Earth Summit convened to address urgent problems of environmental protection and socio – economic development.