1
.
The
dips
in
carbon
dioxide
seem
to
occur
about
every
____________________
years
.
2
.
What
happens
to
temperature
when
the
carbon
dioxide
drops
?
It
____________________
3
.
What
do
scientists
call
a
period
when
the
planet
is
very
cold
and
covered
in
ice
?
____________________
____________________
4
.
How
many
ice
ages
have
we
had
over
the
last
400
,
000
years
?
____________________
5
.
What
happens
to
the
carbon
dioxide
and
temperature
in
between
the
ice
ages
?
It
____________________
6
.
The
total
albedo
of
the
planet
____________________
during
the
ice
ages
.
7
.
This
increase
in
albedo
lead
to
more
energy
being
____________________
8
.
This
increase
in
albedo
lead
to
____________________
temperatures
.
9
.
The
time
in
between
ice
ages
is
known
as
____________________
periods
.
10
.
The
interglacial
periods
probably
had
____________________
ice
.
