Answer:
By colonising Australia Britain gained an important base for its ships in the Pacific Ocean. It also gained an important resource in terms of being somewhere to send convicts. Until the American Revolution Britain could send convicts to the Thirteen Colonies.
Explanation:
source: https://www.nationalarchives.gov.uk/education/empire/g1/cs4/background.htm#:~:text=By%20colonising%20Australia%20Britain%20gained,convicts%20to%20the%20Thirteen%20Colonies.
