What makes pluto dwarf planet?

Answer 1

Pluto is not considered a planet because it has failed to clear the debris from its path and is not the dominant body.

Answer 2

Pluto is considered a dwarf planet because it does not meet all the requirements to be classified as a full-fledged planet. According to the International Astronomical Union's definition, a planet must orbit the sun, be spherical in shape, and have cleared its orbit of other debris. While Pluto orbits the sun and is spherical, it has not cleared its orbit as it shares its path with other objects in the Kuiper Belt. Therefore, Pluto is categorized as a dwarf planet.