What+are+glaciers?

Glaciers are large, slow moving masses of ice made of layers of compacted snow, re-crystalized ice and rock debris. The process of glacial growth is called establishment. Glaciers form when too much snow and ice fall over many years. The glaciers move over land. he ice from glaciers are the largest reservoir of fresh water on earth. Glaciers are found all over the polar regions and in every continent except Australia. Glaciers are indicators of rising temperatures and are important to world water resourses.