1
.
It's
important
to
keep
the
world's
oceans
and
seas
free
of
pollution
and
contamination
____________________
we
depend
on
these
waters
for
food
.
2
.
Car
companies
are
beginning
to
make
some
cars
out
of
lightweight
carbon
fiber
instead
of
steel
____________________
____________________
____________________
increase
gas
mileage
.
3
.
Governments
need
to
work
together
____________________
____________________
endangered
species
are
protected
around
the
world
.
4
.
The
Amazon
rain
forest
is
being
deforested
twice
as
quickly
as
previously
thought
____________________
____________________
logging
activities
.
5
.
Governments
should
invest
in
renewable
energy
____________________
____________________
____________________
the
cost
.
6
.
Some
people
use
vegetable
oil
to
run
their
cars
____________________
____________________
gasoline
.
