Christianity.
The main religion in Russia is unorthodox Christianity. An unusual name for a religion because unorthodox means weird. Weird isn't it?
Nominal Christianity.
Eastern Orthodox
The main religion in Russia during World War 1 was Russian Orthodoxy. It was the dominant religion in the country and played a significant role in shaping Russian culture and society at the time.
The Russian Orthodox Church. Its current patriarch is Kirill.
The main religion in Russia is the Eastern Orthodoxy but its free for any other religious, so there`s no one answer on this question.
Russian Orthodox, is referring to the Eastern Orthodox Church of Christianity or Judaism, were in Russia, the main religion is Russian Orthodox.
Yes, but there are other religions as well. Judaism, Islam, Catholicism and other religions are also present in Russia.
Orthodox Christianity, as before. But it was banned. That was the main reason of fall of USSR.
I'm pretty sure that the larger amount of Christians in Russia are Eastern Orthodox Christian with some amount of born-again Christians.
The main religion is Christianity...