Indicate the main features of the nature and economy of the Commonwealth of Australia.

The uniqueness of nature and economy in the Australian Union lies in the fact that the mainland on which this country is located has been isolated from the rest of the land for tens of millions of years, and most of the local plant and animal species are endemic. Farming species brought by humans from Europe are more competitive and pose a serious threat to the local population. The warm climate and the absence of natural enemies allows almost all invasive plants and animals to thrive.