Particles That Make Up the Rings of Uranus and Neptune

Multiple Choice

Particles that make up the rings of Uranus and Neptune are composed of:

A) rocky material from tidally disrupted moons
B) organic material that has darkened due to bombardment by high-energy, charged particles
C) icy material from tidally disrupted comets
D) magma from volcanic eruptions on the surfaces of their moons
E) all of the above