Modern
farm
workers
often
use
____________________
like
drones
,
to
make
their
work
easier
.
Drones
take
photographs
from
the
____________________
.
The
____________________
show
farm
workers
when
their
crops
need
water
.
The
photographs
also
show
if
the
____________________
have
a
disease
,
so
they
can
use
____________________
to
help
the
plants
.
Farm
workers
can
use
the
photographs
to
see
if
any
animals
need
____________________
.