Year: 2019
Topic: Biodiversity and Conservation
Time :
1.
The Earth Summit held in Rio de Janeiro in 1992 was called
(1). for conservation of biodiversity and sustainable utilisation of its benefits.
(2). to assess threat posed to native species by invasive weed species.
(3). for immediate steps to discontinue use of CFCs that were damaging the ozone layer. .
(4). to reduce caused CO
2
emissions and global warming