The Earth summit held in Rio de Janeiro in 1992 was called :
- to assess threat posed to native species by invasive weed species
- for immediate steps to discontinue use of CFCs that were damaging the ozone layer
- to reduce CO2 emissions and global warming
- for conservation of biodiversity and sustainable utilization of its benefits
Answer
(4) for conservation of biodiversity and sustainable utilization of its benefits
Solution
As per NCERT, the historic Convention on Biological Diversity (‘The Earth Summit’) held in Rio de Janeiro in 1992 called upon all nations to take appropriate measures for conservation of biodiversity and sustainable utilisation of its benefits.
(Discontinuing CFCs relates to the Montreal Protocol, 1987; reducing CO2 emissions relates to the Kyoto Protocol.)
Answer: (4)