Final answer:
The body paragraphs of an informational text usually contain supporting details that provide specific information, evidence, examples, and explanations.
Step-by-step explanation:
The portion of an informational text that usually contains supporting details is the body paragraphs. The body paragraphs provide specific information, evidence, examples, and explanations that support the main idea or thesis statement of the text. These details help to provide a deeper understanding of the subject being discussed and persuade the reader to agree with the author's point of view.
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