The correct answer to this open question is the following.
The three brief explanation that describes the essential characteristics of the Apostolic Church are the following.
1.- One of the most important tenets is the Unity of God, the father in the trinity concept: the father, the son, and the holy spirit, in unity. Jesus represents the three of them.
2.- Apostolic people receive baptism but in the name of Jesus. Other Christian religions baptize in the name of the father, the son, and the holy spirit.
3.- Apostolic Followers are very strict with their conduct. They do not drink or smoke. Men are conservative and women wear long dresses and most of them do not use make-up.
Apostolic Pentecostals are the most strict followers of this religion.
Your voltmeter and your teacher are both right, but the water analogy of electricity can only go so far. One big drawback is that, unlike with water, there is no absolute voltage. .... Wherever you put the black lead is defined as "0V". .... flowing (i.e. the circuit is broken) you will not get this change in voltage.
