What is Russia's religion?

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Tags

1. #largest
2. #faith
3. #orthodox
4. #russia
5. #religion
6. #protestantism
7. #ethnic
8. #judaism
9. #professed
10. #belonging
11. #buddhism
12. #multi
13. #denomination
14. #christianity
15. #christian
16. #islam
17. #nation
18. #catholicism
19. #population