Why does vertical mixing decrease when temperature increases with height in the stratosphere?
Answer and explanation
Correct answer: Warmer air above remains stable over cooler air below
The governing principle is stable stratification. When warmer, lighter air lies above cooler, denser air, a displaced parcel tends to return toward its original level rather than continue rising. This inhibits buoyant convection and therefore reduces vertical mixing. In the stratosphere, ozone absorption helps create this temperature increase with altitude. Thus A is correct; the other options do not explain atmospheric stability and include unsupported claims.
Frequently asked questions
What is the correct answer to this question?
Warmer air above remains stable over cooler air below
Why is this the correct answer?
The governing principle is stable stratification. When warmer, lighter air lies above cooler, denser air, a displaced parcel tends to return toward its original level rather than continue rising. This inhibits buoyant convection and therefore reduces vertical mixing. In the stratosphere, ozone absorption helps create this temperature increase with altitude. Thus A is correct; the other options do not explain atmospheric stability and include unsupported claims.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
