A) Ozone depletion
B) global warming
C) Climatic changes
D) biodiversity hot spot
Correct Answer: A
Solution :
[a] The Montreal Protocol on Substances that Deplete the Ozone Layer (a protocol to the Vienna Convention for the Protection of the Ozone Layer) is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.
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