MCQOPTIONS
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				| 1. | 
                                    Which is the first satellite mission to use two different radar frequencies to measure changes in our planet's surface less than a centimeter across? | 
                            
| A. | Shakti | 
| B. | Gaganyaan | 
| C. | Netra | 
| D. | NISAR | 
| Answer» E. | |