MCQOPTIONS
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| 1. |
Scientists have discovered the biggest explosion seen in the universe since the Big Bang. The explosion took place at the center of a galaxy that's about ________ million light years from Earth. |
| A. | 320 |
| B. | 390 |
| C. | 430 |
| D. | 470 |
| E. | 500 |
| Answer» C. 430 | |