Between 1984 and 2016, both the total area covered by sea ice and the portion of sea ice that was more than a year old decreased significantly. Explore the sea ice in September, when it covers the least amount of area.

Years 2005-2009 are light purple, the record-low year 2012 is ... Minimum sea ice extent has decreased 13.1% per decade since 1979. ... In the Arctic Ocean, the area covered by sea ice grows and shrinks ... Less than 1% of ice is 4 or more years old. ... Arctic sea ice minimum as of September 10, 2016.

Explanation:

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.