(ii) Match each process of river erosion with its correct definition in the table below. One has been completed for you.


Process


Hydraulic action Abrasion


Attrition Solution Definition The water can dissolve some of the minerals on the riverbed and banks.


Broken material is thrown against the bed and banks of the river and wears them down.


The fast-moving water breaks and wears away material from the bed and banks of the river.


The load itself can be broken down further as rocks bang against each other and become smooth and rounded.


(iii) Look at the aerial photographs below of different features found along the course of a river. Place the correct name for each feature in the box below it.


Meander Tributary Ox-bow lake Floodplain Waterfall V-shaped valley


GeoSkill


It is very helpful to look at aerial images of river features on the landscape. This will help you to quickly identify features if presented with them in the exam. You should also be able to state and explain the processes that formed the features.


11 RIVERS 113


MAIN RIVER


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