Australia is itself a country. It is also regarded as a continent because of its size, but sometimes the other islands and countries around it in the south Pacific are included in the name Oceania. The name Australasia is also used for Australia and a smaller amount of the islands that are near it, like New Zealand and New Guinea.
Australia is surrounded by sea, not by any countries
No
South Australia is a state within the country of Australia. It does not contain any countries.
No
Asia is a continent. Continents have countries. Countries have capitals.
South Australia is a state in its own right, and it is part of the country of Australia. There are no other countries in South Australia or any of the other states of Australia.
Australia is both a continent and a single country. The official name of the country is the Commonwealth of Australia.
There are not three countries in Australia. Australia is a continent and an independent country in itself. Its capital is Canberra, and the currency is the Australian dollar.
No countries have any animal named croodile
Antarctica is the only continent without any countries. Australia and South America have fewer than 20 countries, with Australia having 6 countries and South America having 12 countries.
Australia doesnt have a marine corps, as such the number marine reserves would be, at best, only the few that are marine reservists in other countries here on holiday.
Just one - Australia itself. Australia is classed as a continent rather than an island, because of its size.