in
spring
____________________
the
polar
bear
was
____________________
on
the
end
____________________
____________________
actanen
____________________
is
animal
that
is
like
of
ace
____________________
in
its
natural
____________________
polar
bears
have
been
categorized
as
a
"
____________________
"
species
the
ESA
defines
a
threatened
species
as
one
that
is
like
ly
to
become
"
____________________
"
in
the
____________________
.
The
____________________
____________________
is
the
firts
animal
that
has
been
classified
as
endangered
clue
primaryly
to
global
warming
.
____________________
____________________
is
caused
bye
____________________
____________________
and
other
green
house
gases
that
became
trapped
in
the
____________________
heathing
homes
driving
car
sand
burninggar
bageall
tequire
fossil
fuels
that
lead
to
____________________
____________________
.