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2019-06-27	parinaz.rnj	80	Check this topic
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2019-06-27	parinaz.rnj	80	Check this topic
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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 th

Topic category: Integrated TOEFL Writing