In what way(s)has Pluto long been known to be different from the planets?
A)It is composed primarily of ices.
B)It is far smaller than the terrestrial planets.
C)It has a highly eccentric orbit.
D)Its orbit is more inclined to the ecliptic plane.
E)All of the above

Question

Quizplus · Accepted Answer

All of the above statements are true - Pluto is composed primarily of ices, it is far smaller than the terrestrial planets, and its orbit is both highly eccentric and more inclined to the ecliptic plane. These differences have contributed to an ongoing debate over whether Pluto should be considered a planet, with some arguing that it should be classified as a dwarf planet or a member of the Kuiper Belt instead.

In What Way(s)has Pluto Long Been Known to Be Different