Its composition is usually rocky or metallic.
rocky
Its composition is usually rocky or metallic.
its rocky
its rocky
Mars is rocky.
Comets are made mostly of ice.
Its compostion is usually rocky or metallic.
Venus is a rocky planet similar to earth in size, gravity, and bulk composition.
Mercury is terrestrial, a rocky world.
the answer is believed to be rocky and metallic but scientist don't know for sure.
MARS is rocky and metallic;everyone knows that but scientists have not proved it yet.