A glacier is a huge mass of ice that moves very slowly downhill along the landscape.
Glaciers form in high latitudes near Earth's poles and at high altitudes,
They form due to the accumulation (piling up) and compaction (packing down) of snow.
As the glaciers expand, due to their accumulating weight of snow and ice they crush and abrade and scour surfaces such as rocks and bedrock. The resulting erosional landforms include striations, cirques, glacial horns, arêtes, trim lines, U-shaped valleys, roches moutonnées, overdeepenings and hanging valleys.
Explanation:
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