Which Atmosphere term is correctly associated with classification or zone: “the layer above the troposphere”, and also with “extends from the tropopause to the stratopause”?

Correct Answer: Option A — Stratosphere. Stratosphere is correct because it is the layer above the troposphere. Stratosphere is also associated with extends from the tropopause to the stratopause. A further identifying fact is that Stratosphere is temperature rises with height because ozone absorbs ultraviolet radiation. Another useful fact is that Stratosphere is associated with it is relatively stable and has little vertical mixing. Why the other options are incorrect: Option B — Mesosphere: It is the layer above the stratosphere and is associated with extends to the mesopause; those are the identifying facts of Mesosphere. Option C — 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 D — Exosphere: It is the outermost atmospheric region and is associated with gradually merges into outer space; those are the identifying facts of Exosphere. Exam Takeaway: Link Stratosphere with “the layer above the troposphere” and “extends from the tropopause to the stratopause” for quick revision.