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Title: Which of the following is true about U.S. pollution levels? Post by: Alamojay on Feb 17, 2015 Which of the following is true about U.S. pollution levels?
A) the release of toxic chemicals has increased by 19%. B) the average levels of lead in the blood of children have declined by 80%. C) acid deposition has increased by 27%. D) total emissions of five principal air pollutants have increased by 14%. Title: Re: Which of the following is true about U.S. pollution levels? Post by: JesuisMel on Feb 28, 2015 Content hidden
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