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Title: Which of the following regions of the earth's atmosphere is closest to the surface of the earth? Post by: Whelan on May 6, 2015 Which of the following regions of the earth's atmosphere is closest to the surface of the earth?
A) mesosphere B) stratosphere C) thermosphere D) troposphere Title: Re: Which of the following regions of the earth's atmosphere is closest to the surface of the earth? Post by: hbutler2 on May 23, 2015 Content hidden
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