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Examine the photographs above and answer each of the following questions - Leaving Cert Geography - Question 3A - 2019
Question 3A
Examine the photographs above and answer each of the following questions. (i) In your answer book, match each of the letters A, B and C on the photographs above, wi... show full transcript
Worked Solution & Example Answer:Examine the photographs above and answer each of the following questions - Leaving Cert Geography - Question 3A - 2019
Step 1
In your answer book, match each of the letters A, B and C on the photographs above, with the landform that best matches it from the list below:
Answer
- C - Beach: Photograph C shows a sandy shoreline typical of beach formation.
- A - U-shaped valley: Photograph A depicts a valley shape formed by glacial activity, characteristic of U-shaped valleys.
- B - Basalt columns: Photograph B showcases a rocky structure reflecting hexagonal basalt columns formed from volcanic activity.
Step 2
In your answer book, match each of the letters A, B and C on the photographs above, with the process most associated with its formation from the list below:
Answer
- B - Lava cooling: Photograph B, featuring basalt columns, is formed by lava cooling and solidifying.
- C - Longshore drift: Photograph C illustrates the accumulation of sediment along coastlines, indicative of longshore drift processes.
- A - Plucking: Photograph A is associated with plucking, a process where glaciers remove pieces of rock, contributing to the U-shaped valley.
Step 3
Explain briefly each of the following:
Answer
Longshore drift
Longshore drift is the process by which sediment is transported along the coastline by wave action. Waves approaching the shore at an angle cause sand and other materials to move in a zigzag pattern, facilitating steady beach erosion and deposition along the coast.
Plucking
Plucking is a glacial process that involves the removal of rock fragments from the ground as a glacier moves over bedrock. This occurs when glacial ice freezes around rocks and, as the glacier advances, pulls the rocks away, resulting in features such as U-shaped valleys.