Extent of Ice (Millions of square kilometers) 10 OO J a 5.8 5.1 4.9 5.0 5.1 49 4.7 4.9 5.0 U 46 4.4 4.5 4.5 3.9 3.7 3.9 3.7 W N O 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Year Part: 0 / 2 Part 1 of 2 (a) What was the first year that the coverage dropped below 5 million square kilometers? The first year that the coverage dropped below 5 million square kilometers was