Question

which characteristic distinguishes dwarf planets from planets? orbits the sun is round is not a moon has not cleared its orbit of objects

Explanation:

According to the International Astronomical Union's definition, a planet has cleared the neighborhood around its orbit, while a dwarf - planet has not cleared its orbit of other objects. Planets and dwarf - planets both orbit the Sun, are round, and are not moons.

Answer:

has not cleared its orbit of objects