One of the author's purposes might be to inform, persuade, entertain, or express their thoughts and opinions.
to teach us a lesson and you cannot trust everyone you meet
the main points of the story the lesson learned and or the authors point of view
Not necessarily. Some stories are simply meant for entertainment or storytelling purposes without a specific lesson or moral intended. However, many stories do aim to impart lessons or themes to the audience.
A fairy tale usually has one of two or both of these purposes. To put a child to sleep, or to give a moral, the lesson of a story.
California
the machines
It would be Japan and Soviet Union. Hope this helps
African American males
the working class
80 percent
Both "on a lesson" and "in a lesson" are grammatically correct, but they are used in slightly different contexts. "On a lesson" is typically used to indicate discussing or reflecting on a specific lesson, while "in a lesson" is used to describe participating or being present in a lesson.
the water heater cools down.