Which Atmosphere term is correctly associated with key feature: “temperature generally decreases with height”, and also with “most weather phenomena occur in it”?

Correct Answer: Option C — Troposphere. Troposphere is correct because it is temperature generally decreases with height. Troposphere is also associated with most weather phenomena occur in it. A further identifying fact is that Troposphere is temperature generally decreases with height. Another useful fact is that Troposphere is associated with most weather phenomena occur in it. Why the other options are incorrect: Option A — Stratosphere: It is temperature rises with height because ozone absorbs ultraviolet radiation and is associated with it is relatively stable and has little vertical mixing; those are the identifying facts of Stratosphere. Option B — Mesosphere: It is it contains some of the coldest atmospheric temperatures and is associated with many meteors burn up in it; those are the identifying facts of Mesosphere. Option D — Thermosphere: It is temperature rises greatly as high-energy radiation is absorbed and is associated with auroras occur mainly in this region; those are the identifying facts of Thermosphere. Exam Takeaway: Link Troposphere with “temperature generally decreases with height” and “most weather phenomena occur in it” for quick revision.