Final answer:
Refraction causes headlands to be areas of powerful surfing and sites of deposition.
Step-by-step explanation:
Refraction causes headlands to be areas of powerful surfing and sites of deposition.
When ocean waves reach a headland, they bend or refract around it due to a change in water depth. Refraction focuses the wave energy on the headland, causing the waves to be more powerful and suitable for surfing. The wave energy also leads to the deposition of sediment, such as sand and gravel, on the headland and in its surrounding areas.