a
)
There
are
two
types
of
____________________
:
continental
and
oceanic
.
b
)
The
mantle
is
composed
of
____________________
rock
.
c
)
The
____________________
____________________
is
composed
of
liquid
metal
.
d
)
The
____________________
core
is
composed
of
solid
metal
.
e
)
The
crust
is
composed
of
solid
,
cool
____________________
.
f
)
The
____________________
is
more
solid
near
the
crust
and
more
solid
near
the
core
.
