Monday, December 28, 2009

Why do Glaciers appear?


A Glacier is like a great river of ice . glaciers appears when more snow falls than melts every year. The snow collects , squeezing the lower layer hard. it turns ice and forms a glacier.

All the time snow is being added at the top , the glacier will move forward under its own weight. Most glaciers today are left over from the Last Ice age. In the past two million years there have been five glaciations areas and from the Artic to cover most of Europe .

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