Select the correct answer from each drop-down menu. Graph of Average Monthly Arctic Sea Ice Extent September 1979-2010. Horizontal label, Year, 1978-2010. Vertical label Extent (millions square miles). Data points from (1978, 2.87) till (2010, 1.98). Line passes through (1978, 3.17) till (2010, 2.18). This graph gives information on changes in sea ice extent in the Arctic Ocean over a 30-year span. The overall trend shows in sea ice extent. To address the trend, scientists need to ask themselves, ? One direct consequence of the trend is that .