The 'period of one revolution of sun around the centre of galaxy is called
| A. | Parsec |
| B. | Astronomical year |
| C. | Cosmic year |
| D. | Light year |
Answer : C Explanation : |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
