a waterfall
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A river
The mouth is where the river enters the sea.
The source is where the river starts and the mouth is where it ends.
Dnieper river flows into the Black Sea
It is known as the mouth of the river.
It ends at the mouth which is near Canvey Island and the Isle of Grain. It flows into the North Sea near the English Channel.
Water flows downhill. A watercourse will always be found in a valley, assuming there is precipitaion.
The River Tay flows into the North Sea east of Dundee.
It flows into the Thames Estuary, North Sea at Southend-on-Sea, Essex, UK
The River Jordan, for example, flows into the Dead Sea, an inland sea.
The Mouth of the River Thames is between the Counties of Essex and Kent where it flows into the North Sea.
"The canoe entered through the mouth of the river." "The mouth of the river was a good place for fishing." :)
It is in Ireland. The river Liffey flows from the Wicklow mountains through to the city centre of Dublin and into the Irish Sea. As it flows through the city it creates a north and south division of the city and county, referred to as the northside and the southside.