MCQOPTIONS
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MCQOPTIONS
| 1. |
Since when Halley’s Comet is regularly observed? |
| A. | 100 B.C. |
| B. | 44 B.C. |
| C. | 240 B.C. |
| D. | 160 B.C. |
| Answer» D. 160 B.C. | |