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2017-12-20	hunghanchen	78	Check this topic
2018-11-04	saeed-iz	80	Check this topic
2018-10-06	biol	85	Check this topic
2018-08-15	mahm	78	Check this topic
2021-08-16	ricky96	3	Check this topic
2020-10-30	saeedpanahi	85	Check this topic
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2016-10-26	Sepid	70	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