What river runs through southern england, including london, and empties into the north sea?

The River Thames is the river that runs through Southern England which includes London, and eventually empties into the North Sea. It is actually the longest river all over England and is the second longest in all of United Kingdom. The largest is River Severn. River Thames also flows alongside towns and cities like Oxford, Reading, Henley-on Thames and Windsor.

The answer would be true.