A
load
is
a
____________________
that
____________________
____________________
a
____________________
.
They
can
be
classified
into
:
.
-
fixed
or
____________________
if
they
don't
____________________
over
____________________
such
as
the
own
____________________
of
the
object
.
-
____________________
if
they
are
____________________
and
____________________
such
as
the
____________________
,
snow
.
.
.
