Why is the mesosphere the coldest part of the atmosphere? I really need help answering this. Please don't answer if you don't know the answer.
-Thank you
2007-09-30 03:32:02 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
The mesosphere is the coldest part of the atmosphere because very little solar radiation is absorbed in this layer.
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2007-09-30 03:50:54 · answer #1 · answered by artistagent116 7 · 0⤊ 0⤋
The mesosphere lies under the thermosphere. The thermosphere is heated by solar radiation and the impact of tiny meteoric particles. Although the gases in the thermosphere can get heated to 450 deg C, the particles of gas are so thinly spread that heat transfer is minimal. The mesosphere cannot therefore benefit from the heat that is in the thermosphere and is effectively insulated from it. For a full explanation please see the Wikipedia entries for mesosphere and thermosphere:
http://en.wikipedia.org/wiki/Mesosphere
http://en.wikipedia.org/wiki/Thermosphere
2007-09-30 03:51:25 · answer #2 · answered by Michael B 6 · 0⤊ 0⤋