Australia is a Country in "Western Society" Western Society is places like New Zealand, Australia, Brittan, USA, Ireland, Scotland... ect... ect... ect... They are all part of a "Christian Society". So Christianity. To be part of the Western Society you must be under Christian Rule so basically under the Church of England.
Christianity
The majority religion in Australia is Christian However Australians are free to participate in any religion they wish or not have any religion at all.
The majority is of the population Christian, but we are a multicultural society.
None. The majority of South Australians prefer to have no religion at all. However, there are minorities who belong to Pentecostal churches.
Christianity religion has the majority.
Catholic Christianity is the religion for the majority of italians!
Christianity is the largest faith system in Australia. The majority of Australian Christians are Protestant (such as Anglican and Presbyterian). About a quarter of Christians in Australia are Roman Catholic and there are a smaller number of Eastern Orthodox. Pentecostalism is rapidly growing. But it is still awesome that there are mainly Christians in Australia.
The vast majority Christian maybe a few Jews and Buddhists [London had significant numbers of Jews and Chinese even then.
The majority religion in Iran is Shi'ite Islam.
I don't understand your question but Australia has not chosen a national religion.
Majority of China believe in Buddah.
Atheism
majority having religion as islam, others are in minority