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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.
Next up, the mesosphere starts just above the stratosphere, 31 miles (50 km) above the surface and extends up to 53 miles (85 km). The mesosphere is the coldest layer of the atmosphere with temperatures averaging -130Â° F (-90Â° C). Most of the meteors that burn up in the atmosphere do so in the mesosphere.