The UK.
The UK has a population about three times greater than Australia.
England, with 51,446,000 people, or about 83% of the UKs population.
size of population-UK about 3x oz population size of country-oz 20x UK climate and geography-no deserts or extended droughts in UK Australia has distinctive wildlife-kangaroos,koalas,wombats,dangerous snakes,sharks and spiders
may be UK in technology field
No, the UK is not the world's 79th largest country. The UK's land area ranks around 78th in the world. It is also not the 22nd most populous country; it ranks around 21st in terms of population globally.
No, China has the largest population followed by India. The UK is ranked 22 in the world for population size.
UK with about 63 million
England has many more people than Scotland, Wales or Northern Ireland.
Russia is the largest country in Europe. The Ukraine is the largest country wholly in Europe.
London is the largest city in the UK with a population of around 7.5 million.
Liverpool is the 4th largest city in the United Kingdom.
No the largest country in the UK is England, both in physical size and in population.