Which Atmosphere term is correctly associated with classification or zone: “the layer above the stratosphere”, and also with “extends to the mesopause”?

Correct Answer: Option A — Mesosphere. Mesosphere is correct because it is the layer above the stratosphere. Mesosphere is also associated with extends to the mesopause. A further identifying fact is that Mesosphere is it contains some of the coldest atmospheric temperatures. Another useful fact is that Mesosphere is associated with many meteors burn up in it. Why the other options are incorrect: Option B — Thermosphere: It is a very thin upper atmospheric layer and is associated with lies above the mesopause; those are the identifying facts of Thermosphere. Option C — Exosphere: It is the outermost atmospheric region and is associated with gradually merges into outer space; those are the identifying facts of Exosphere. Option D — Ozone layer: It is a region of enhanced ozone concentration and is associated with located mainly in the stratosphere; those are the identifying facts of Ozone layer. Exam Takeaway: Link Mesosphere with “the layer above the stratosphere” and “extends to the mesopause” for quick revision.