Like many rivers, the Thames flows into the sea.
The River Thames is 215 miles (346 kms) long.
Like most rivers, the Thames flows into the sea - the North Sea.
The river Thames empties into the sea. The distance would therefore be zero.
About 170 miles.
London Bridge is about 150 miles downstream from the source of the river Thames.
From the mouth of the Thames at the North Sea to Teddington Lock in West London.
As far as I am familiar, there is no Argus River in Spain. If, perhaps, you meant the Tagus River (Río Tajo in Spanish), the river has its source and most of its length in Spain, but its mouth is in Portugal.
The river Thames is tidal as far upstream as Teddington Lock which is in a suburb of West London.
There are no locks on the Thames. There are lots of locks on the Thames so that the river can be navigated. The river is tidal as far as Teddington Lock in west London.
The Thames does not end in Oxford. It carries on meandering westward as far as Cricklade, near Cirencester.
From the estuary up as far as Teddington Lock, ie the tidal part of the Thames, it is governed by the Port of London Authority. From Teddington Lock to its source, the Environment Agency is responsible.
Tides as far up river as Teddington Lock and heavy rainfall in the rest of the river.
no, the river nile is the longest in the world
68 miles, as far as Teddington
The Thames has fresh water from its source in the Cotswolds, as nearly all rivers have fresh water from their sources.