That is a 'delta'
a Delta is a 'wetland' form that is created in the mouth of a river and is formed by sediments carried down by the river and deposited in its mouth. Over millions of years this can form a large flat area, or a tidal mouth, which is covered by the tidal flow of the sea
Depends on the river. Large rivers can be miles wide at the mouth.
a river mouth
widest river in britain?
A Tidal Bore is a wave that forms when a rising tide enters a shallow, narrow river from a wide area of the sea.
150 miles wide. but cheak on other websites to.
estuary
An estuary.
about 300 miles
whether they are deep or wide, slow or fast flowing, shallow or steep gradient, a river flows in a channel
Meander
The Euphrates river helps make up the land area of Mesopotamia along with the Tigris river. On average, the Euphrates 700 miles wide from its mouth.