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

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.

by 1890, the united states had by far the world's most productive economy. american industry produced twice as much as its closest competitor--britain. but the united states was not a great military or diplomatic power. its army numbered less than 30,000 troops, and its navy had only about 10,000 seamen. britain's army was five times the size of its american counterpart, and its navy was ten times bigger. the united states' military was small because the country was situated between two large oceans and was surrounded by weak or friendly nations. it faced no serious military threats and had little interest in asserting military power overseas.

britian is way too advanced for me my good luck