Blue is the colour between violet and green on the optical spectrum of visible light. Human eyes perceive blue when observing light with a wavelength between 450 and 495 nanometres.
The United Kingdom is a Sovereign island country. It consists of 4 constituent countries, England, Northern Ireland, Scotland and Wales. Great Britain is the name of the island which consists of England, Scotland and Wales.The full name is the United Kingdom of Great Britain and Northern Ireland. The UK is part of the continent of Europe.he United Kingdom is a Sovereign island country. It consists of 4 constituent countries, England, Northern Ireland, Scotland and Wales. Great Britain is the name of the island which consists of England, Scotland and Wales.
North America and South America are now treated as separate continents in much of Western Europe, China, and most native English-speaking countries, such as the United States, Canada, Australia, and New Zealand. Furthermore, the concept of two American continents is prevalent in much of Asia.n this sense the term continental Europe is used to refer to mainland Europe, excluding islands such as Great Britain, Ireland, and Iceland, and the term continent of Australia may refer to the mainland of Australia, excluding Tasmania.