1.  - Natural processes and human impact combined can greatly degrade beaches., 2. - The climate and activities that attract people to beaches means that people have built homes, holiday units and related infrastructure close to the sea., 3.  - Such structures interfere with the natural processes of the beach., 4. - Building projects remove vegetation, resulting in greater erosion of beaches., 5. - For example: dunes are kept in place by vegetation., 6.  - People contribute to the effects of beach degradation through use.,

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