Answer:
The planet pluto originally was considered as a real planet until its demotion as a dwarf planet.
The reason it was demoted was because it was soon realized to not meet the three criteria of the International Astronomical Union used to define a full size planet.
So if pluto was not categorized as a dwarf planet than it would of just fallen under as a planet.
Step-by-step explanation:
Not mine answer but it from purple6kabi