The majority is of the population Christian, but we are a multicultural society.
christianity
They practice Islam religion.
Australia is a mainly christian country. With catholic and church of England in the lead. However Australians are free to practice whatever religion they chose to be a part of.
The religion that does not practice circumcision is Jainism.
Rastafari is a religion that promotes the smoking of ganja, which is probably illegal in Australia. (People who practice Rastafari don't like the word "Rastafarianism" because the religion opposes "isms" in general).
In Australia (as it stands at the moment) people are free to practise any spirituality, religion, philosophy, etc they choose to, as long as it does not restrict or violate the state or federal law. The terms spirituality, religion and philosophy covers Religion, Non-Religion, New Age Religions and other spirituality and philosophies such as Scientology. It is impossible to have a fair and reasonable society if there is no freedom of religion or for that matter if religion plays a part in the government of a nation. To this end the constitution of Australia guarantees freedom of religion or no religion.
Buddhism is the religion. Buddhist practice Buddhism.
They practice Roman Catholic religion
It is entirely up to you, how seriously you wish to practice your religion.
The religion that includes the practice of godparents is Christianity.
they practice the religion of pakarah, a ancient religion that revolves around the sun as the centerpiece of life.
I guess you ment " what religion do hindu's practice?" If so, it is Hinduism.