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Mon, 04/19/2021 - 23:11	incoco	70	Check this topic
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Tue, 09/12/2017 - 03:51	Marshia	73	Check this topic
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Fri, 09/28/2018 - 03:15	Marword	85	Check this topic

Topic title: Burning coal in power plants produces a waste product called coal ash a material that contains small amounts of potentially harmful chemicals Environmentalists in the United States are concerned about the damage such harmful chemicals may be doing to the

Topic category: Integrated TOEFL Writing