How were the aboriginal effected by the arrival of the Europeans to Australia?

Answer:
The result was deadly for Aboriginal and Torres Strait Islander peoples. Within weeks of exposure to the diseases, the Indigenous communities experienced a large number of deaths. It was reported that smallpox killed half of the Indigenous people in the Sydney area within just over a year of British arrival.
Explanation:
for the previous question- Antarctica is a unique continent in that it does not have a native population.