Explain how long-shore drift occurs and changes the shape of the landscape.

Longshore drift (LSD) is caused by a prevailing wind which is at an angle to the beach.  This causes waves to rise up the beach at an angle, and fall down the beach in a straight line, due to gravity.  Each wave will transport some sediment as it moves.  This means that sediment will move in a zig-zag pattern along the beach; causing a build-up of deposition at one end.  This causes the beach get narrower at one end and wider at the other.  In some instances, LSD can cause a spit to form if the beach reaches a headland. This causes deposition to go out to sea.

(I will also draw and use annotated diagrams to illustrate my explanations)