Fill in the Blanks ReadingOnline version Find the right word by Rafitix49 1 1543 industrialised inhabitants Channel Kingdom scientific fourteen includes country North The United ( UK ) is a sovereign state in Europe . Its official name is the United Kingdom of Great Britain and Northern Ireland . It lies off the north - western coast of the European mainland . It the island of Great Britain , the north - eastern part of the island of Ireland and many smaller islands . It shares a land border with the Republic of Ireland to the north , but is mainly surrounded by the Atlantic Ocean to its west and north , the Sea to the east and the English to its south . The United Kingdom has a population of about 64 . 1 million and is the 22nd - most populous country . It is a constitutional monarchy with a capital city , London . The current monarch since 6 February 1952 is Queen Elizabeth II . The UK is formed by four countries : England , Scotland , Wales , and Northern Ireland . While Wales became a part of the Kingdom of England in , Scotland was unified in 1707 . In 1801 , the United Kingdom of Great Britain and Ireland was constituted , but it wasn ? t until 1922 that this state received the name of United Kingdom of Great Britain and Northern Ireland . The UK also has Overseas Territories , the remnants of the British Empire which once encompassed almost a quarter of the world ? s land mass . The United was the world ? s first and the world ? s foremost power during the 19th and early 20th centuries . Nowadays , it remains a great power with important economic , cultural , military , , and political influence internationally .
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