The number of ideas that focuses in the main paragraph of any writing text is only one specific idea.
What is an idea?
The idea is an indicator that makes the relation between the title of the topic and the main focus of the paragraph.
While explaining the main body paragraph in the writing text like an essay, article, passage, etc., then the paragraph should focus on describing only one idea and not many ideas. If there is a presence of more than one idea, then the readers get confused about what the paragraph is explaining.
Therefore, only one idea has to be the focus of the main body paragraph.
Learn more about the idea in the related link:
https://brainly.com/question/3206703
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