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- During the Ice Age large amounts of water were stored as ice and snow, causing the sea levels to fall.
- This exposed areas to erosion.
- After the Ice Age, when the ice and snow melted, many coastal areas were flooded.
- These rises and falls in sea level have created landforms such as drowned coasts and raised beaches.
- Caused by pre-glacial erosion of a coastline.
- During the Ice Age the sea levels fall leaving the old coastline high above the present sea level.
- Since the end of the Ice Age sea levels have risen again, but not to their previous levels.
- The raised beaches continue to be above the present sea level by quite a distance.
- Sea Level rise after the last Ice Age caused estuaries and inlets to be flooded.
- This occurred in South West England, drowning many river valleys around the coasts of Devon and Cornwall, and creating Rias.
- In other, more northern areas, glacial valleys were drowned to create Fjords.
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