Ozone layer is spread all over not just Australia. I think you mean to say ozone hole.
Australians simply say "Welcome to Australia".
A broom is no more likely to stand on end in Australia than it is to stand on end in any other part of the world. There is nothing unusual about Australia that enables brooms to stand on end.
Ansett Australia ended in 2002.
North Australia ended in 1847.
Railpage Australia ended in 2010.
Austin Australia ended in 2004.
The Argus - Australia - ended in 1957.
TRL Australia ended in 2006.
Central Australia ended in 1931.
Australia Wide ended in 2008.
They speak English in Australia so you say: My name is Ingrid