The composition of the surface is mainly made up of igneous rocks, which are rocks formed from cooling lava.
(The composition of the surface; is mainly made up; of igneous rocks) (igneous rocks; are; rocks formed from cooling lava) (rocks; formed; from cooling lava)
The composition of the surface igneous rocks rocks
is mainly made up are formed
of igneous rocks
rocks formed from cooling lava
from cooling lava