Both, Australia is the only Nation that occupies a continent, The island continent
Australia is the only nation that occupies a continent. With an area of 7 682 300km2, it is the sixth-largest country in area after Russia, Canada, China, the United States and Brazil.
The continent is one of the oldest land masses - continental bedrock exposed by erosion is more than 3000 million years old - and is the flattest of the continents. After Antarctica, it has the lowest precipitation of any continent. Vast areas are arid or semi-desert, unsuitable for settlement.
The average elevation is less than 300m, compared with the world’s mean of about 700m. The Australian Alps in the south east contain Australia’s highest ground, the highest point being Mount Kosciusko (2228m).
Nearly a third of the continent lies in the tropics, and the rest is in the temperate zone. The coldest regions are in the highlands and tablelands of Tasmania and the south-eastern corner of the mainland.
The climate ranges from tropical in the north to temperate in the south. Summer is from December to February, autumn (fall) from March to May, winter from June to August, and spring from September to November.