The Authors structure their article in this way
determine what is to be written in a topic
provide an overview of the key concepts in the article
identify major relationships in there writing
identify strength and weaknesses
identify conflicting evidence
identify any gaps from previous articles and fill it up
structure is so effective because it controls the major elements/parts of the story, it affects the meaning of the story by organizing the theme of the article been written
Explanation:
It is necessary for authors to structure their article in a good and presentable manner because it helps the reader to get whatever information the author is trying to pass across