I am almost newbie here and want to learn more about Crypto currency
and how can earn from there?
I see some tutorial about this one of them is Onion (where we can earn through there forum )
is it really possible earn bitcoin from there or anything else.
Please suggest me something about this.
Yes you can earn, first you should follow the rules and regulation. Then read and participate the forum, look for campaigns like bounty hunting, airdrops etc. Some people in forum suggest you about campaign that suits you.