I believe that is from BC Science 7 and the answer is a delta.
A plain formed at the mouth of a river is called a delta. It is created by the accumulation of sediment that the river carries as it flows into a larger body of water, such as an ocean or lake. As the river slows down upon entering the still water, it loses its capacity to transport sediment, leading to the deposition of materials like sand, silt, and clay. This sedimentary deposit gradually builds up over time, creating a fertile and often ecologically rich area.
"The canoe entered through the mouth of the river." "The mouth of the river was a good place for fishing." :)
Alluvial deposits are river/stream deposits, whether they are found at the mouth of the river or anywhere along its length. In some cases, the alluvial deposits at the mouth of a river can form a delta.If this is not what you wanted to know, please rephrase the question. As it stands, this is an incomplete sentence with a question mark at the end of it.
The mouth of a river is where the river flows into another body of water, such as an ocean, sea, lake, or another river. It is typically wider than the rest of the river and marks the end of the river's journey. At the mouth, the velocity of the river's flow decreases, leading to sediment deposition.
A rive cliff and a river deposit
A deposit at the mouth of a river is called a delta. This land form is created because of the deposition of sediments carried by a river as the flow leaves its mouth.
This deposit is called a "delta".
A deposit at the opening of a river is called delta.
the nile delta is a fan-shaped mud deposit at the mouth of the nile river
delta
Delta.
dirt ,mud ,rocks ,and pebbles.
Alluvial fan
This land deposit you speak of is called a delta.
The deposit of water born silt at the river's mouth.
When theres a meander or it comes to the mouth also when it comes to a waterfall
DELTA