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Title: Which of the following is a synthetic greenhouse gas? Post by: barry on May 17, 2013 Which of the following is a synthetic greenhouse gas?
A) Water vapor B) Nitrogen C) Oxygen D) Chlorofluorcarbons E) Methane Title: Re: Which of the following is a synthetic greenhouse gas? Post by: savio on May 18, 2013 Content hidden
Title: Re: Which of the following is a synthetic greenhouse gas? Post by: barry on May 18, 2013 Thanks
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