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Examine the diagram of glacial landforms above, and answer each of the following questions - Leaving Cert Geography - Question 3A - 2019
Question 3A
Examine the diagram of glacial landforms above, and answer each of the following questions. (i) Name each of the glacial landforms labelled A, B, C, D, E and F. (i... show full transcript
Worked Solution & Example Answer:Examine the diagram of glacial landforms above, and answer each of the following questions - Leaving Cert Geography - Question 3A - 2019
Step 1
Step 2
Explain briefly what is meant by the term plucking in relation to glaciation.
Answer
Plucking is a glacial process where a glacier erodes the landscape by freezing onto rocks and sediment. As the glacier moves, it pulls these materials out of the ground, effectively carving the landscape. This mechanism contributes significantly to the features created by glaciers, such as U-shaped valleys and dramatic landforms.
Step 3
Explain briefly how glaciers move.
Answer
Glaciers move primarily through two processes: basal sliding and internal deformation. Basal sliding occurs when the glacier slips over the meltwater at its base, allowing it to flow down slopes. Internal deformation involves the ice crystals within the glacier shifting and sliding past each other due to the weight of the ice overhead, which allows the glacier to flow and adapt to the topography.