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					 Which of the following are correctly matched?
 1. Viena : Protection
 convention : of ozone layer
 2. Stockholm : Hazardous wastes
 convention : and their disposal
 3. Rotterdam : Hazardous
 convention : chemicals
 4. Basel : persistent organic
 convention : pollutions
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                        - 1 and 2
- 1 and 3
- 2, 3 and 4
- 1, 2 and 4
 
Correct Option: B
1 and 3
 
	