Answer:
ethos
Explanation:
The reason its ethos is because its asking for credibility
hope this helps :)
The organizing principles that are used in this paragraph are comparison and contrast; cause and effect. In the beginning, the author is giving the similarities and the differences between petroleum and coal, and moves on to talk about cause and effect in the end.
It should have the main idea and why it is.
If you mean paragraph as in a paragraph in a narrative essay, you would likely do this at the beginning paragraph leading into the next paragraph. That way the reader understands the setting, main character's names, any current conflicts, and any other necessary information while they continue to read.
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