Question

question 1
how do dwarf planets differ from regular planets?

Explanation:

Regular planets meet three IAU criteria: orbit the Sun, hydrostatic equilibrium (spherical shape), and clear their orbital neighborhood (no similar-sized objects nearby). Dwarf planets meet the first two but fail the third—they share their orbit with other debris/objects.

Answer:

Dwarf planets differ from regular planets because they do not clear their orbital neighborhood (unlike regular planets, which have cleared their orbits of similar-sized objects), though both orbit the Sun and have a spherical shape due to hydrostatic equilibrium.