Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands.
China, officially the People's Republic of China (PRC), is a sovereign state located in East Asia. It is the world's most populous country, with a population of over 1.35 billion.
The United Kingdom, made up of England, Scotland, Wales and Northern Ireland, is an island nation in northwestern Europe.
Canada is a North American country stretching from the U.S. in the south to the Arctic Circle in the north.