An
ocean
is
a
____________________
of
salt
____________________
which
covers
a
____________________
area
of
the
surface
of
The
____________________
.
A
sea
is
a
____________________
of
salt
____________________
which
covers
a
____________________
area
.
The
water
is
always
____________________
because
of
:
____________________
(
caused
by
the
wind
)
.
Currents
(
they
are
like
____________________
)
.
Tides
(
movements
up
and
____________________
of
the
level
of
the
____________________
)
.
