Answer:
Oceans are an accumulation feature and alluvial fan are depositional feature
Step-by-step explanation:
- An alluvial fan is a triangular-shaped deposit that is often referred to as alluvium. Are an example of unconsolidated sedimentary deposits, and thus tend to be larger and more predominant in arid and semi-arid regions.
- They are typically found in mountainous regions where there is a rapid change in slope. Various types of fan are a proximal fan, medial fan, and the distal fan.
- An oceanic basin is a hydrologically formed and covers about 70% of the earth's surface, they collect sediments that are eroded by the continents known as clastic sediments, as well as precipitous sediments.
- As alluvial fans feature is associated with elevated highlands the upliftment is necessary as compared to the oceanic basins there exist mid-oceanic ridges and abyssal hills and plains.