Explain how geology influences coastal landscapes.
The command is “explain”, so your answer should provide a reasoned account of how geology influences coastal landscapes. Geology refers to rock type and its structure in coastal landscapes.
Less resistant rock, such as boulder clay, erodes quicker than more resistant rock, such as chalk. This influences coastal landscapes by forming landforms such as bays and headlands. Bays form where the geology is less resistant, leaving more resistant rock extending into the sea to form headlands.
The structure of rock-forming cliffs also affects coastal landscapes. Where cliffs are formed from sedimentary rock such as chalk, joints in the bedrock erode more rapidly, forming landforms such as cracks, caves, arches and then stumps.