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Glacial Landforms: Erosional Landforms Video Lecture | Geology Optional for UPSC

FAQs on Glacial Landforms: Erosional Landforms Video Lecture - Geology Optional for UPSC

1. What are glacial erosional landforms?

Ans. Glacial erosional landforms are features created by the movement of glaciers that erode the landscape. This erosion occurs through processes such as abrasion and plucking, leading to the formation of various landforms, including U-shaped valleys, fjords, and cirques.

2. How do glaciers contribute to the formation of U-shaped valleys?

Ans. U-shaped valleys are formed by the intense erosion caused by moving glaciers. As a glacier flows down a valley, it scours the sides and bottom, creating a characteristic U shape. The process involves both abrasion, where the glacier grinds against the rock, and plucking, where pieces of rock are pulled away.

3. What is the difference between a cirque and a horn in glacial landforms?

Ans. A cirque is a bowl-shaped depression found at the head of a glacier, formed by erosion. In contrast, a horn is a sharp peak that forms when multiple glaciers erode a mountain from different sides, creating steep, jagged ridges. Both are distinct features of glacial erosion.

4. Can you explain the term 'fjord' in relation to glacial landforms?

Ans. A fjord is a deep, narrow inlet of the sea that is created when a glacier retreats and sea water floods the valley. Fjords are characterized by steep cliffs on either side and are typically found in coastal areas that have been shaped by glacial activity.

5. What role does climate change play in the erosion of glacial landforms?

Ans. Climate change significantly impacts glacial landforms as rising temperatures lead to glacier retreat and increased melting. This not only alters existing landforms but also can accelerate erosion processes, potentially leading to new landform creation and changes in the landscape.

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Oct 09, 2025 Last updated

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	Geology Optional for UPSC 64 videos\|135 docs

Geology Optional for UPSC

64 videos|135 docs

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