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Examine how humans interact with one of the following surface processes: - River processes - Coastal processes - Mass movement. - Leaving Cert Geography - Question 3C - 2021
Question 3C
Examine how humans interact with one of the following surface processes: - River processes - Coastal processes - Mass movement.
Worked Solution & Example Answer:Examine how humans interact with one of the following surface processes: - River processes - Coastal processes - Mass movement. - Leaving Cert Geography - Question 3C - 2021
Step 1
Step 2
Explain a Key Interaction - Coastal Erosion Management
Answer
One significant interaction is the construction of sea walls. Sea walls are built to protect coastal areas from wave action and prevent land loss due to erosion. By absorbing and reflecting wave energy, these structures help maintain the stability of coastal land. However, they can also have negative effects, such as increasing erosion in adjacent areas.
Step 3
Provide a Named Example
Answer
An example of this interaction can be seen at the coast of Brighton, UK, where sea walls have been constructed to prevent coastal erosion. This area has seen both positive impacts, such as protecting infrastructure, and negative consequences, including scouring of surrounding beaches due to concentrated wave energy.
Step 4
Annotated Diagram
Answer
An annotated diagram illustrating the effects of sea walls on coastal processes would include:
- Labels showing the sea wall, beach area, and water levels.
- Arrows indicating wave action against the wall and resulting land changes.
- Additional notes on observed erosion patterns on adjacent beaches.
Step 5
Evaluate Positive and Negative Interpretations
Answer
Overall, while sea walls provide necessary protection for human developments along the coast, they also introduce challenges such as altered sediment supply and increased localized erosion. This duality highlights the complexity of human interactions with coastal processes.