How many obligatory acts are there in Wudu/ Wuzuu?

 How many obligatory acts are there in Wudu/                                          Wuzuu?

There are four obligatory acts in Wudu/ Wuzuu i.e. (1) washing the face from the forelock down to the

lower portion of the chin and from the lobe of one ear to the other. Water should flow on every

part of the face

 (2) washing the hands upto, inclusive of, elbows leaving no spot dry 

(3)doing

"Masah" i.e. passing wet fingers of both the hands over the head and

 (4) washing the feet upto,

inclusive of, ankles.