A glacier is a persistent body of dense ice that constantly moves under its own weight. Glaciers begin to form when snow remains in the same area year-round, where enough snow accumulates to transform into ice. Each year, new layers of snow bury and compress the previous layers. This compression forces the snow to re-crystallize, forming grains similar in size and shape to grains of sugar. Glaciers are often called “rivers of ice" and fall into two groups: alpine glaciers and ice sheets. Alpine glaciers form on mountainsides and move downward through valleys. Ice sheets, unlike alpine glaciers, are not limited to mountainous areas. They form broad domes and spread out from their centers in all directions. As they spread, they cover everything around them with a thick blanket of ice, including valleys, plains, and even entire mountains. Please have a look at the insightful presentation.

Shashank Shekhar Pathak

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