What is the most scientific reason for weak vertical mixing in the stratosphere?
Answer and explanation
Correct answer: Temperature increases upward, creating stable stratification.
The governing concept is atmospheric stability caused by the stratospheric temperature profile. In the stratosphere, temperature generally increases with altitude because ozone absorbs ultraviolet radiation. A parcel of air displaced upward becomes cooler and denser than its surroundings, so buoyant convection is suppressed and vertical mixing is weak. Water vapour is limited, pressure decreases with height, and winds do not stop completely. Thus, option A is correct.
Frequently asked questions
What is the correct answer to this question?
Temperature increases upward, creating stable stratification.
Why is this the correct answer?
The governing concept is atmospheric stability caused by the stratospheric temperature profile. In the stratosphere, temperature generally increases with altitude because ozone absorbs ultraviolet radiation. A parcel of air displaced upward becomes cooler and denser than its surroundings, so buoyant convection is suppressed and vertical mixing is weak. Water vapour is limited, pressure decreases with height, and winds do not stop completely. Thus, option A is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
