when this diagram is used to plan an essay, the blue box represents the\nintroduction.\nbody of the…

when this diagram is used to plan an essay, the blue box represents the\nintroduction.\nbody of the essay.\nsupporting ideas\nconclusion.
Answer
Brief Explanations:
In essay - planning diagrams, the top - most or starting box often represents the introduction which sets the stage for the essay.
Answer:
introduction