MCQOPTIONS
 Saved Bookmarks
				| 1. | 
                                    India's first multi-wavelength space-based observatory, Astrosat, completed how many successful years of operation? | 
                            
| A. | 2 | 
| B. | 4 | 
| C. | 5 | 
| D. | 10 | 
| Answer» D. 10 | |