Australia is the largest country by area in Oceania and the world’s sixth-largest country. Australia is a highly developed country with a high-income economy; it has the world’s thirteenth-largest economy, tenth-highest per capita income and eighth-highest Human Development Index.Australia is the sixth-largest country in the world with a pretty diverse geography with snow covered moutains ,large deserts, tropical and temperate forests etc. Major parts of Australia are arid or semi-arid .