Final answer:
The classification of coast as either erosional or depositional is influenced by wave energy, sea level changes, geological structure, and coastal currents.
Step-by-step explanation:
In geography, the classification of coast as either erosional or depositional is influenced by several factors:
- Wave Energy: High energy waves typically erode the coast, creating features like cliffs and sea caves. In contrast, low-energy waves deposit sediments, forming features like beaches and barrier islands.
- Sea Level Changes: Rising sea levels can lead to the deposition of sediments and the formation of coastal landforms while falling sea levels can lead to erosion and the exposure of coastal features.
- Geological Structure: The presence of resistant rocks can protect the coast from erosion, while softer rocks may be more easily eroded and lead to depositional features.
- Coastal Currents: The movement of currents along the coast can transport sediments, influencing erosion or deposition.