Which Atmosphere term is correctly associated with location: “extends to the mesopause”, and also with “it contains some of the coldest atmospheric temperatures”?

Correct Answer: Option B — Mesosphere. Mesosphere is correct because it is extends to the mesopause. Mesosphere is also associated with it contains some of the coldest atmospheric temperatures. 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 A — Thermosphere: It is lies above the mesopause and is associated with temperature rises greatly as high-energy radiation is absorbed; those are the identifying facts of Thermosphere. Option C — Exosphere: It is gradually merges into outer space and is associated with particles are extremely sparse; those are the identifying facts of Exosphere. Option D — Ozone layer: It is located mainly in the stratosphere and is associated with absorbs much of the Sun's harmful ultraviolet radiation; those are the identifying facts of Ozone layer. Exam Takeaway: Link Mesosphere with “extends to the mesopause” and “it contains some of the coldest atmospheric temperatures” for quick revision.