Name a dwarf planet.

Name a dwarf planet.

• A. Mercury
• B. Earth
• C. Venus
• D. Eris

Answer: (D)

Dwarf planets are bodies that orbit the Sun, are roughly round in shape, but have not cleared their orbital neighborhood of other debris. Among the options, Mercury, Earth, and Venus are terrestrial planets; they are large enough to dominate their orbits and have cleared away other objects nearby. Eris is a small icy body located in the Kuiper Belt, and it was classified as a dwarf planet because it is nearly round but has not cleared its orbit. So Eris is the dwarf planet in this list.

Dwarf planets are bodies that orbit the Sun, are roughly round in shape, but have not cleared their orbital neighborhood of other debris. Among the options, Mercury, Earth, and Venus are terrestrial planets; they are large enough to dominate their orbits and have cleared away other objects nearby. Eris is a small icy body located in the Kuiper Belt, and it was classified as a dwarf planet because it is nearly round but has not cleared its orbit. So Eris is the dwarf planet in this list.