Facebook is a one kind of a software wher and when we nead we can use it but we have to connect or we have sarvice of net fecility. in this software we can sheare image,viedeo,news etc.now days many people are using facebook in their daily life.some advantage & disadvantage of facebook are shown bellow:-

Adavantage

• we can shere photo,viedo,news etc
• we can get knoeladge
• we can use face book when we feel lazy

Disadvantage 

• by using facebook many people became bad