Select any one of the following surface processes: - Sea/marine action - River action - Glacial action - Mass movement Explain the formation of any two Irish landforms caused by your selected process with the aid of diagrams. - Leaving Cert Geography - Question Question 1 - 2007

Sea/marine action is a significant geological process that shapes landforms along coastlines. It involves the action of waves, currents, and tides that erode, transport, and deposit sediments along the shore.

In Ireland, two notable landforms caused by sea action are:

1. Cliffs of Moher:
   • Formation: The relentless crashing of waves against the limestone cliffs results in erosion over time. The waves undercut the base of the cliffs, leading to rock falls and creating steep cliff profiles. The processes of hydraulic action, abrasion, and solution contribute to significant erosion.
   • Diagram: A diagram should illustrate the layers of rock, the position of waves, and how erosion creates an undercut effect.
2. Sea stacks (e.g., Goat Island):
   • Formation: Initially part of the mainland, these stacks are created when waves erode the weaker rock surrounding a headland, isolating a section of rock. Over time, the forces of erosion carve the stack away from the mainland, leaving a pillar-like structure jutting out into the sea.
   • Diagram: The diagram would depict a sea stack, waves, and the eroded mainland, showing the process of isolation.