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प्रश्न
Pluto is no longer a planet. Reason out.
टीपा लिहा
उत्तर
- In August 2006, the International Astronomical Union (IAU) down-graded the status of Pluto to that of the dwarf planet.
- The three criteria of the IAU for a full-sized planet are
- It is in orbit around the Sun.
- It has sufficient Mass to assume nearly a round shape.
- It has cleared the neighborhood around its orbit.
- Since Pluto is able to meet only the first two of the criteria, it is no more a planet.
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