The graph shows how sea ice extent in the Arctic region has changed since 1975. Classify the questions based on whether they can or cannot be
answered using
the graph.
Square miles of seake
3.5
Extent of Arctic Sea Ice
www
2.5 mill
2
1.5 mill
1 mill
500,000
1975 1980 1985 1990 1995 2000 2005 2010 2015
What is the overall
change in sea ice
extent since 1980?
In which year was sea
ice extent the highest?
How has the change in
sea ice extent affected
precipitation?
How has sea ice extent
fluctuated every five
years since 1980?
Can Be Answered Using
the Chart
Which regions have
been most affected by
reduced sea ice extent?
What is the estimated
sea ice extent in 2020?
Cannot Be Answered Using
the Chart