A museum display uses Fig. 1 to compare a young coastline with a more mature coastline. On the left, steep cliffs and a narrow shore platform are shown. On ...

Assessment: Geography 9230 | Paper 1 Mock 01 | Written Paper 1 Subject: Geography - 9230

Question 1 Report

9230-p1-coast-platform-comparison-14

A museum display uses Fig. 1 to compare a young coastline with a more mature coastline. On the left, steep cliffs and a narrow shore platform are shown. On the right, the platform is wider and the cliff has moved inland. Visitors are asked to identify the sequence of changes caused by repeated marine erosion at the base of the cliff.

(a) Which process cuts the platform at the base of the cliff? [1]
(b) Outline why a wave-cut platform becomes wider over many years. [2]
(c) Draw a labelled line to show where the cliff face was likely to have been in the past. [2]

Answer Details

(a) Abrasion / hydraulic action [1] (b) Waves cut a notch and cliff collapses [1]; repeated cliff retreat leaves more of the former shore exposed as platform [1] (c) Award [1] for a line seaward of the present cliff on the wider platform diagram; [1] for label such as former cliff line / old cliff position.

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