shelly was surprised to learn the dwarf planet pluto used to be considered a planet. what would have had to…

shelly was surprised to learn the dwarf planet pluto used to be considered a planet. what would have had to be true for pluto to remain categorized as a planet?\npluto would need to have an atmosphere.\npluto would need to clear the neighborhood of its orbit.\npluto would need to have a larger moon.\npluto would need to have water or ice.
Answer
Brief Explanation:
According to the International Astronomical Union's (IAU) 2006 definition of a planet, a planet must orbit the Sun, be spherical in shape due to its own gravity, and have "cleared the neighborhood" of its orbit. Pluto fails in the third - criterion as it shares its orbit with other objects in the Kuiper Belt.
Answer:
Pluto would need to clear the neighborhood of its orbit.