Question

This is one way to determine if one is encountering an explanation versus an argument?

Answer 1

In explanations, the conclusion is less questionable than the premises. 
An argument is a method of reasoning in which the reason presents prove with the help of a claim made in the conclusion. Its motivation is to give a promise to trusting the conclusion to be valid. An explanation is a basis in which the reason displays a reason for some reality spoken to by the conclusion.