Which landform is a deep crack in the glacier?

Which landform is a deep crack in the glacier?

• A. Cirque
• B. Crevasse
• C. Kettle Lake
• D. Arete

Answer: (B)

Glaciers create surface features from their movement, and a deep crack forms where the ice is pulled apart as it flows. This crack is called a crevasse. Crevasses arise from tension as the glacier stretches over uneven terrain or bends, and they can extend far down into the ice. They’re a key indicator of how a glacier is moving and deforming. Cirques are bowl-shaped hollows carved at the head of a glacier by erosion, Aretes are sharp ridges between cirques formed by further erosion, and kettle lakes develop when chunks of ice become lodged in the ground and then melt, leaving depressions that fill with water. None of these are cracks in the ice the way crevasses are. Thus, the deep crack in the glacier is a crevasse.

Glaciers create surface features from their movement, and a deep crack forms where the ice is pulled apart as it flows. This crack is called a crevasse. Crevasses arise from tension as the glacier stretches over uneven terrain or bends, and they can extend far down into the ice. They’re a key indicator of how a glacier is moving and deforming.

Cirques are bowl-shaped hollows carved at the head of a glacier by erosion, Aretes are sharp ridges between cirques formed by further erosion, and kettle lakes develop when chunks of ice become lodged in the ground and then melt, leaving depressions that fill with water. None of these are cracks in the ice the way crevasses are. Thus, the deep crack in the glacier is a crevasse.