Is Catholic The biggest religion?

Related questions

1. What is a agnostic person?
2. Can a pastor marry?
3. Do agnostics believe in God?
4. What is Brad Pitt's religion?
5. What is it called when you don't believe in God?
6. What is Einstein's God letter?
7. Do agnostics believe in Jesus?
8. Who was the first atheist?
9. What is it called when you believe in God but not the Bible?
10. Who took prayer out of school?

Tags

1. #largest
2. #approximately
3. #catholics
4. #known
5. #christian
6. #roman
7. #catholic
8. #worldwide
9. #baptised
10. #billion
11. #church