Facebook is an personal socail media here you can share photos news videos. in facebook you can make known people as friends and also in facebook you can do advertise, marketing all kind of activity and also in facebook you can chat your friends real time.
In linkedin its an professional network you can connect here anyone from any companies and also here you can publish an articles your idea’s you can search for an job if you would like to see anyone profile you can use this soialmedia and linked most probably we can use only for business and professional people. most of the time people hire from linkedin