The largest cities are Sydney, Melbourne, Adelaide and Brisbane.

Australia’s highest mountain are Australian Alps in the extreme southern part of the eastern Highlands.
MONT KOSCIUSKO,2228 meters high in the Snowy Mountain range. The famous and longest river of Australia is The Murray (2589km)and The Darling .Most of Australia’s natural lakes are dry for months or years at a time.
Economics.
Australia has rich mineral resources, so much of Australia’s industry is centred around mining as well as farming. It exports a great variety of minerals and metals all over the world.
Farmers produce nearby all the food needed by the people. Australian leading farm products are cattle, wheat, wool along with dairy product, fruit and sugar cane.
manufacturing of metallurgical products steel, heavy equipment, electric and electronic equipment, chemicals, textiles, food processing and petroleum refining are on high level.