Just calling them "religious groups" is fine. On the other hand, there are several related terms, such as "religions", "sects", and "denominations". Note that these have somewhat different meanings from one another.
islam, chistianity, judaism
The 3 main religious groups are: -Christianity -Judaism (Jewish) -Islamic The previous answer is not correct. The religions listed above are the Abrahamic Religions and not the main religious groups of the world. There are literally hundreds of thousands of religious groups, and possibly thousands of "main" religious groups.
There are different names: Presbyterians and Lutherans call them manses, Anglicans call them rectories, Catholics call them presbyteries (UK, Ireland) or rectories (USA) and still other religious groups call them parsonages.
Yes...
what do you call a groups of a farmers
No, they are not racial groups but religious groups.
The protestants make up 6 different religious groups; or denominations. The 6 different sects of the protestant religious groups are puritans, Methodists, Presbyterians, Baptists, Adventists, Pentecostals.
Islam Religion is not a religious group. Its a religion for whole universe. Its not for a specific group.
there is many different religious groups
Buddhism.
Yes there are still religious groups called the Rightouse like Christianity and Judaism, or Islam.
Most of the religious groups who settled in colonial Virginia were Anglicans and other Protestant denominations.