The United Kingdom (or Great Britain) is situated on the British Isles. The British Isles consist of two large islands, Great Britain and Ireland. It consists of four parts: England, Scotland, Wales and Northern Ireland. London is the capital of England, Edinburgh is the capital of Scotland, Cardiff — of Wales and Belfast — of Northern Ireland.The main islands are the Isle of Man and the Isle of Wight.The mountains in Britain are not very high.There are a lot of rivers in Great Britain, hut they are not very long. The Severn is the longest river, while the Thames is the deepest oneThe surface of the British Isles varies very much..