The correct answer is - all of these contributed.
The sediments in the lagoons come from multiple different sources. The rivers and streams from the mainland, the sediments brought by the wind, and even the ocean waves that manage to get over the spit occasionally.
The biggest influence in the deposition of the sediments in the lagoons though is by the rivers and the streams from the mainland. They carry sediments with them constantly, and the amount of those sediments is also on a high level, in fact they bring in so much sediments that they have actually built the lagoon itself.
The wind and the ocean waves that manage to get over the spit have much lesser influence in the total deposition of sediments, but still they do in some part, and it shouldn't be put aside.
The combination of the three different sources, with different types of sediments brought to the lagoon by each of them, gives the lagoons a beautiful and unique appearance.
Good climate, many rivers, fertile soil
The concept of continuity relates to historical developments and processes because historians can link the happenings in the past to recent occurrences.
- The concept of continuity simply explains the continuation of a cycle and it shows the connection that exists between historical events.
- Changes take place at different times which are then linked forward and backward in time. Continuity refers to the continuance of themes.
- The concept of continuity is vital as historians are able to link what has occurred earlier to the recent things that are happening. For example, Islam had an influence on African culture and its development.
In conclusion, continuity is important to historians.
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