Steemit:

Steeemit is a great social plateform where we can upload post all atound the world.It is a plateform which is linked with cryptocurrency and we can earn money like steemdollar and steem by giving upvote in our post from the users of steemit.

So it has alot of benefits for users.

Facebook:

Facebook is also a social plateform where we can post all around the world with our friends.It is no linked with cryptocurrency and we canot earn money etc.So it is just wastage of time.