Why is the stratosphere considered a relatively calm atmospheric layer?
Answer and explanation
Correct answer: Because vertical air movement is relatively weak
The governing concept is atmospheric stability. In the stratosphere, temperature generally increases with height because ozone absorbs ultraviolet radiation. This arrangement suppresses convection and limits vertical mixing, so the layer is relatively calm compared with the weather-filled troposphere. Therefore option D is correct. It does not touch Earth’s surface, contain only dust, or experience stronger weather disturbances than the troposphere.
Frequently asked questions
What is the correct answer to this question?
Because vertical air movement is relatively weak
Why is this the correct answer?
The governing concept is atmospheric stability. In the stratosphere, temperature generally increases with height because ozone absorbs ultraviolet radiation. This arrangement suppresses convection and limits vertical mixing, so the layer is relatively calm compared with the weather-filled troposphere. Therefore option D is correct. It does not touch Earth’s surface, contain only dust, or experience stronger weather disturbances than the troposphere.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
