MCQOPTIONS
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| 1. |
Russian astronomer, ………………., extrapolated his theory creating theKardashev scale, which categorizes the energy use of advanced civilizations. |
| A. | Nikolai Kardashev |
| B. | George B.Selden |
| C. | Jon Hall |
| D. | Sam Ockman, |
| Answer» B. George B.Selden | |