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Physical map of Australia Australia on the globe with Australia's Antarctic claims hatched. Australia is a country and an island located in Oceania between the Indian Ocean and the South Pacific Ocean. It shares its name with the country that claims control over it.
Australia's annual average temperatures are projected to increase 0.4–2.0 °C above 1990 levels by the year 2030, and 1–6 °C by 2070. Average precipitation in the southwest and southeast Australia is projected to decline during this time, while regions such as the northwest may experience increases in rainfall.
Australia, officially the Commonwealth of Australia, [17] is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. [18] Australia has a total area of 7,688,287 km 2 (2,968,464 sq mi), making it the sixth-largest country in the world and the largest in Oceania .
The deserts in the interior and south lack any significant summer rains. The desert in western Australia is well explained by the little evaporation of the cold sea current of the West Australian Current, of polar origin, which prevents significant rainfall in the interior of the continent. [3] About 40% of Australia is covered by dunes. [5]
The Commonwealth of Australia comprises the mainland of the Australian continent, the major island of Tasmania, other nearby islands, and various external territories. [1] Neighbouring countries are Indonesia , East Timor , and Papua New Guinea to the north, the Solomon Islands , Vanuatu , and New Caledonia to the north-east, and New Zealand to ...
The geology of Australia includes virtually all known rock types, spanning a geological time period of over 3.8 billion years, including some of the oldest rocks on earth. Australia is a continent situated on the Indo-Australian Plate .
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It runs roughly parallel to the east coast of Australia and forms the fifth-longest land-based mountain chain in the world, and the longest entirely within a single country. It is mainland Australia's most substantial topographic feature and serves as the definitive watershed for the river systems in eastern Australia, hence the name.