An island is the name given to a piece of land surrounded by water from all sides in seas, lakes and rivers. Continents are generally landmasses surrounded by water on all sides. In practice, climatic factors determine whether a landmass is a man or a continent, as the water effect is heard from the midpoints of the landmasses.
In the formation of the islands; erosion, sediment deposition, living organisms, tectonic activities, building processes, changes in water level play a role. Erosion, the simplest way of island formation, often creates short-lived islands. These islands are either formed between the old bed and the new bed by the change of direction of the river bed, or they emerge on the sea coast as a result of the waves eroding the sea shores. In both cases, the event that caused the formation causes the disappearance of the island: the old bed of the river fills up and the islands on the seaside are destroyed by the effect of the waves. Sedimentary accumulation islands are formed by the accumulation of substances such as sand and mud carried by rivers in places where the flow rate of water decreases. The island grows with the added substances. It is also seen that these types of islands are formed in shallow seas by the effect of wind and waves. The continuation of sedimentary accumulation causes the islands to be connected to the mainland after a certain period of time.