Answer :
The continual washing away of the less resistant rock begins to form weak areas on either side of the headlands.
What are Headlands?
This refers to the narrow piece of land that is a coastal landform that extends onto a body of water.
Hence, we can see that when headlands occur, there is the coming together of both hard and soft rocks and when this happens, there is the washing away of the less resistant rock that begins to form weak areas on either side of the headlands.
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