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. Group of answer choices What is the overall change in sea ice extent since 1980? [ Choose ] How has the change in sea ice extent affected precipitation? [ Choose ] In which year was sea ice extent the highest? [ Choose ] How has sea ice extent fluctuated every five years since 1980? [ Choose ] Which regions have been most affected by reduced sea ice extent? [ Choose ] What is the estimated sea ice extent in 2020? [ Choose ]