What type of glacial landform is characterized by a hill of glacial ice that flows away from its bedrock?

• A. Roche moutonnee
• B. Drumlin
• C. Kame
• D. Erratic

Answer: (A)

The correct answer is a roche moutonnee, which is a distinctive glacial landform created by the movement of glaciers over bedrock. It typically manifests as a smooth, elongated hill or mound that exhibits a characteristic asymmetrical shape. The side facing the direction of the ice flow is often steep and polished, while the opposite side is gentler and may show signs of erosion. This formation occurs as glaciers scrape across the rock surface, smoothing and shaping it through processes like abrasion and plucking.

Roche moutonnees are significant because they provide valuable information about past glacial movements and the dynamics of ice flow. Studying these formations can help scientists understand the extent and behavior of historical glaciers and their impact on the landscape.