Question

Why is pluto not a planet?

Answer 1

Pluto is not a planet because it's a dwarf planet it's to small to be a planet.

Hopefully this helped =)!

Answer 2

Pluto revolves around a star instead of our SUN. So, it's an "Exo-planet" rather than a Planet. It has declared in 2006 by the scientists.

Hope this helps!