Rain
that
contains
harmful
chemicals
that
collect
in
the
atmosphere
when
fossil
fuels
are
burned
that
is
called
____________________
____________________
.
A
gas
that's
released
by
plants
and
by
burning
fossil
fuels
that
is
called
____________________
-
____________________
.
A
measurement
of
the
amount
of
carbon
-
dioxide
a
person
adds
to
the
atmosphere
that
is
called
____________________
____________________
.
Increase
in
the
amount
of
carbon
dioxide
and
other
gases
in
the
atmosphere
which
is
believed
to
be
the
cause
of
a
gradual
warming
of
the
surface
of
the
Earth
that
is
called
____________________
____________________
Damage
caused
to
water
,
air
.
.
.
.
by
harmful
substances
or
waste
that
is
called
____________________
to
collect
and
treat
rubbish
to
produce
useful
materials
which
can
be
used
again
that
is
called
____________________
____________________
