Sydney is larger. In 2009, the population of Sydney is over 4.2 million while the population of Perth is about 1.5 million.
Sdney
No. Brisbane is north of Sydney
Sydney, Melbourne, and Brisbane are in the continent (and nation) of Australia.
The half way point when driving from Brisbane to Sydney, Brisbane is Armidale, Australia.
Melbourne is closer to Sydney than Brisbane is.
Melbourne is closer to Adelaide than Sydney is.
Brisbane is closer to Cairns.
Yes, Brisbane is much bigger than Auckland.
There was no Tsunami that hit Brisbane, and therefore no Tsunami hit Sydney. However there were recent floods that devastated Brisbane and the QLD state of Australia.
It is 921 km by road between Brisbane and Sydney. Air distance is 728 km.
Sydney lies on Port Jackson on the New South Wales coast. It is the capital of NSW. Brisbane, capital of Queensland, is situated on the Brisbane River, near Moreton Bay in the southeast of the state.
Sydney-Melbourne-Adelaide-Perth-Brisbane-Hobart
From Sydney to Brisbane via Armidale is a distance of 969 km. Travel time is around 14 hours, without breaks.