The Coastal System AQA A-Level Geography Midterm Exam And Complete Solutions 2024.

Name the 4 coastal zones - Answer Backshore, foreshore, nearshore, offshore What is the backshore? - Answer The area between the high water mark and the landward limit of marine a activity. Changes only take place during storms and max spring tides. What is the foreshore? - Answer Area between high water mark and low water mark. (The intertidal zone). Most important zone for marine processes except in storms What is the nearshore? - Answer Area between low water mark and point where waves stop influencing land beneath them. What is the offshore? - Answer Area beyond the point where waves stop impacting on seabed. Activity limited to sediment deposition What kind of system is a coastline, why? - Answer Open system. Inputs of are received and outputs are transfered across the boundary of the system. What are the inputs to the coastal system? - Answer - energy to drive the system - sediment - changes in sea level - human activities (litter, beach nourishment) What are the outputs to the coastal system? - Answer - coastal landforms - accumulations of sediment above tidal limit - loss of wave energy