None. Australia is an island, so it just borders ocean.
The above is not quite correct.
Firstly, Australia is an island continent, not an island.
Secondly, it has borders / maritime boundary treaties with other countries, as specific water borders are officially laid out. Australia has a sea border with New Zealand, Papua New Guinea, the Solomon Islands, East Timor and Indonesia.
There is even an officially delineated border agreement between Australia and the French government, given that New Caledonia is French territory.
Only Australia is located in the deserts of Australia.
Australia, while being a continent, is also a country. It is not a collection of countries, just one. So the list of countries for Australia is; Australia.
Australia is a single country, not multiple countries. It is both a continent and a country located in the southern hemisphere.
Only one country is located on the continent of Australia: Australia. However, the remaining 13 countries of Oceania (a Pacific region) are usually included with Australia in the "continent" of Australia & Oceania. So in total, there are 14.
All Australian deserts are located in the country of Australia.
South Africa
South Australia is a state within the country of Australia. It does not contain any countries.
The continent of Australia has a single country - Australia.
it depends. For example Australia is a country but it's also a continent. This means that the continent of Australia has really only one country. On the contrary, Africa has approximately 52 countries.
Some countries entirely located in the Southern Hemisphere include Australia, New Zealand, Argentina, Chile, and South Africa.
There are no countries in Australia. Australia is the only place that is a continent and a country.
Australia is a single country. There are no other countries located in Australia. 2000 km to the southeast is the country of New Zealand, made up of two large islands and many smaller islands.