____________________
sector
activities
involve
obtaining
____________________
materials
directly
from
the
Earth
or
from
living
things
.
There
are
many
different
types
of
____________________
sector
activities
.
____________________
farming
is
the
cultivation
of
land
to
produce
crops
.
Farmers
can
grow
____________________
crops
,
which
only
need
rainwater
.
They
can
also
grow
____________________
crops
,
which
need
extra
water
to
grow
.
____________________
farming
involves
buying
,
selling
,
or
keeping
animals
to
produce
food
and
other
products
.
____________________
farming
means
animals
spend
a
lot
of
time
outdoors
,
in
open
spaces
.
____________________
farming
means
animals
spend
a
lot
of
time
indoors
,
in
enclosed
spaces
.
Fishing
involves
catching
fish
in
different
types
of
bodies
of
water
.
____________________
-
____________________
fishing
is
carried
out
far
away
from
the
coast
while
coastal
____________________
is
carried
out
near
the
coast
.
The
process
of
cutting
down
forests
is
called
____________________
.
____________________
is
the
exploitation
of
forests
and
tree
plantations
.
____________________
involves
taking
natural
materials
from
the
Earth´s
crust
in
two
different
ways
.
____________________
mining
is
carried
out
in
tunnels
below
the
Earth´s
surface
.
____________________
-
____________________
mining
is
carried
out
above
ground
.
In
1900
,
about
____________________
per
cent
of
the
population
worked
in
the
primary
sector
.
Today
,
only
about
____________________
per
cent
work
in
this
sector
.
