<P> A beach is a landform alongside a body of water which consists of loose particles . The particles composing a beach are typically made from rock , such as sand , gravel , shingle , pebbles , or cobblestones . The particles can also be biological in origin , such as mollusc shells or coralline algae . </P>
where does the material that forms beaches come from
rock sand gravel shingle pebbles cobblestones mollusc shells coralline algae