| (i) Persistent organic pollutants. |
| (ii) Global warming and climate change. |
| (iii) To control the emission of ozone depleting substances. |
| (iv) Biosafety of genetically modified organisms. |
A) (i) and (iii)
B) (iii) only
C) (iii) and (iv)
D) (i) and (iii)
Correct Answer: B
Solution :
[b] Montreal protocol on substances that deplete the ozone layer is a protocol to the Vienna Convention for the Protection of the Ozone Layer. It is an international treaty designed to protect the ozone layer by phasing out the production of a number of substances believed to be responsible for ozone depletion. The treat was opened for signature on September 16, 1987, and entered into force on January 1, 1989, followed by a first meeting in Helsinki, ay 1989.
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