Question

What are comets made of?
A. Dust, sand, and hydrogen
B. Rock, metal, and liquid water
C. Dust, metal, and helium
D. Rock, dust, and ice
SUBMIT

Answer 1

Answer:

C. Rock, dust, and ice.

Explanation:

Comets are frozen leftovers from the formation of the solar system composed of dust, rock, and ices.