(b) Write a postcard to a friend back home naming one of the features that you photographed on the previous page and explain to your friend how this feature was formed by the processes of coastal erosion.


POSTCARD


Remember! F.


Feature


E. Explain E. Example D. Diagram


Transport by Sea 2 (i) Match each term in column A with its definition in column B. Column A


Column B


Destructive waves Swash


Constructive waves Backwash


Powerful waves that can cause erosion along the coastline. Water that can move material back down the beach.


These break on the shores and deposit beach material, building up the beach.


This can move material up the beach.


(ii) Complete the sketch below to show how the sea transports its load by the process of longshore drift. You must provide full labels and brief written descriptions on the next page. The first step has been completed for you.


Remember!


Use a pencil to complete the sketch. As this has been started for you by numbering the first step as 1, this might be helpful to continue – label your next step as 2 and so on.


Exam Hint


You should try to use the following key words to help you in your answer: swash, backwash, zig-zag, angle, drags, longshore drift, destructive and constructive waves.


12 THE SEA 127


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