Final answer:
Reasons play a crucial role in an argumentative research essay by providing information, supporting the main argument, and addressing opposing viewpoints.
Step-by-step explanation:
One role that reasons play in an argumentative research essay is that they can give readers more information about the topic. Reasons are used to support the main argument of the essay and provide evidence or examples that support the writer's position. Additionally, reasons can also be used to identify and address the opposition's viewpoint, showing that the writer has considered alternative perspectives.
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