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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.
mesÂ·oÂ·sphere. The layer of the Earth's atmosphere lying above the stratosphere and below the thermosphere, from about 31 to 50 miles (50 to 80 kilometers) above the Earth's surface. In the mesosphere, temperatures decrease with increasing altitude. Thesaurus AntonymsRelated WordsSynonymsLegend: