During the process of mountain building,
a.
weathering and erosion to generate igneous rock formations.
b.
material from the earth's surface is often broken down by crystalization.
c.
material from the earth's interior is often returned to the surface.
d.
the earth's interior often gains material from the atmosphere.

C.  material from the earths interior is often returned to the surface

Explanation:

i got it right on study island

yes we can.   a lady urinates from her urethra.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.