Continental
waters
are
masses
of
____________________
that
cover
areas
of
the
____________________
.
They
are
usually
____________________
water
.
Masses
of
____________________
:
Polar
____________________
caps
(
on
the
____________________
)
.
Glaciers
(
in
____________________
)
.
____________________
water
.
____________________
.
Rivers
.