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A. Troposphere B. Stratosphere C. Mesosphere D. Thermosphere. A: Troposphere is the atmospheric layer closest to the Earth's surface. Log in to see link for more information. Question|Asked by janiya. Asked 314 days ago|6/9/2016 2:02:09 PM. Updated 314 days ago|6/10/2016 2:53:26 AM.
troposphere. the layer of the atmosphere that is nearest to the Earth's surface. It is where most weather changes occur. It is the thinnest layer yet contains half of the Earth's atmosphere.