That is a 'delta'
A Delta is where a large river enters the sea which has a low tidal range.
Because the sea floods it twice a day.
A river which arrives at the sea which has a high tidal range will not form a delta. This is because the change in the tidal area will wash the sediment brought down by the river away. It is the build up of sediment brought down by the river into a relatively tideless sea which forms the delta.
The river tees is not a delta as the north sea (the sea it drains into) is tidal, meaning that the tides wash away the sediment that cause deltas.
A major river which flows into a sea with a small tidal range will form a Delta. I think it is arguable whether the Amazon has a delta, at all.
The geographic definitions of a delta includes areas of water action such as an alluvial deposit at the end of a river as it empties into the sea, and a collection of minerals at the mouth of a tidal inlet. Since there are no permanent rivers on Antarctica that empty into the sea -- 98% of the continent is covered with an ice sheet, and the tidal inlets to open lagoons are non-existent, there is no occurrence of a delta on the continent.
Flood plain, alluvial plain, tidal plain, firth, inlet, bayou, estuary, slough, and river mouth are all terms that are synonymous with 'delta'.
The Congo River has an estuary, an expanding tidal mouth.
Delta is the greek letter D. The Mississippi is a goosefoot delta. A delta is an area of Distributaries, inasmuch as the river is formed by tributaries it arrives at the sea and divides into separate channels to enter the sea. A delta will only be formed in an area of sea which has a limited tidal range.
At the end of the river, the places where the river empties out into something else, usually a lake or the ocean. The reason that some rivers enter the sea with a delta rether than an estuary depends on tidal flow. Where there is little difference in the tidal range a Delta is formed, as in the Mississippi entering the Gulf of Mexico.
idk wat it is really i need someone to help me lol ok so help me out someone be smart and tell cuz i am tired of looking around