The Stratosphere is the layer of the Earth’s atmosphere which lies beyond the troposphere. It extends up to an altitude of 50 kilometres from the earth’s surface. This layer is almost free from clouds and associated weather phenomenon. It therefore makes conditions most ideal for flying aeroplanes.
Mertz Glacier is located in the continent of Antarctica. It is about 45 miles long, heavily crevassed glacier in George V Coast of East Antarctica. The extension of this glacier into the Southern Ocean is called the Mertz Glacial Tongue.