Oceania is in a continental group consisting of 14 countries and includes Pacific islands and Australia. Often Australia is named as continent, but this means that the many islands and countries except Australia would then be not included. Oceania in fact is mostly ocean and spans a vast area.
Explanation:
Oceania's biggest and most populous city is Sydney. More than 5 million people live in Australia's biggest city. Sydney has the most diverse and multicultural population in Oceania. More than 250 languages are spoken here.
