state gov नोंदणी आणि मुद्रांक विभाग: शिपाई (गट-ड) Mock Test Series 2025 General Knowledge Ecology and Environment Conservation efforts: India and World
Which of the following was the first conference/convention on the depletion of the ozone layer?
1
United Nations Framework Convention on Climate Change (UNFCCC)
2
Saving the Ozone Layer conference
3
Convention on Biological Diversity
4
Vienna Conference
5
Answer not known