MCQOPTIONS
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| 1. |
Pluto was classified as a dwarf planet because: |
| A. | its gravity does not exert a pressure on its surface |
| B. | it did not orbit the sun and have a moon |
| C. | it has not cleared the path of its orbit |
| D. | it was discovered only a century ago |
| Answer» D. it was discovered only a century ago | |