graffiti space air pollution land traffic noise trash concrete
1
.
Just
outside
our
office
,
there's
an
ugly
wall
with
painted
on
it
.
2
.
Tall
buildings
need
only
a
little
,
but
they
have
a
lot
of
inside
them
.
3
.
Some
people
eat
as
they're
walking
and
throw
their
right
on
the
sidewalk
.
4
.
My
house
isn't
right
next
to
the
highway
,
but
I
can
hear
the
from
the
.
5
.
It's
hard
to
breath
because
of
all
the
in
the
from
cars
.