What is fundamental purpose of argumentation how do arguments start

An argument has two purposes. It is used to

Because people don't always agree on what is right or reasonable, appropriately constructed argument helps us arrive at what is fair or true. It is used to settle disputes and discover the truth. Instructors assign argumentative writing so students can learn to examine their own and other’s ideas in a careful, methodical way. Argument teaches us how to evaluate conflicting claims and judge evidence and methods of investigation. Argument helps us learn to clarify our thoughts and articulate them honestly and accurately and to consider the ideas of others in a respectful and critical manner.

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation:

hello most volcanoes are located at either divergent or convergent plate

this is where the plate motions aswell form magma