Question

Why is the planet pluto not a planet anymore?

Answer 1

Pluto is not a planet because, there is an asteroid belt called the kero belt, that belt intercepts it from the rest of the planets so scientists decided it would not need to be a planet because, it is cut off from the rest of it's family.

Step-by-step explanation:

Answer 2

I agree with the person above - the planet Pluto was considered to be quite small to even be called a planet. After scientists found objects in space which were similar in size to Pluto (and were not planets), they questioned the "planethood" of Pluto. After that, it became a dwarf planet, and not just a regular planet.