 
			 
			MCQOPTIONS
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				| 1. | Scientists from which institute reported that the largest hole in the Ozone layer spreading over 1 million square kilometers above the Arctic has closed due to unusual atmospheric conditions? | 
| A. | Copernicus European Centre for Medium-Range Weather Forecasts | 
| B. | World Meteorological Organization | 
| C. | China Meteorological Administration | 
| D. | European Organisation for the Exploitation of Meteorological Satellites | 
| Answer» B. World Meteorological Organization | |