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.
where does the material that forms beaches come from
rock sand gravel shingle pebbles cobblestones mollusc shells coralline algae