What is the most suitable reason for fewer clouds in the stratosphere?
Answer and explanation
Correct answer: Less water vapour and stable air
Cloud formation generally requires sufficient water vapour, cooling, and vertical movement of air. The stratosphere contains very little water vapour and is comparatively stable, so there is limited convection and condensation; consequently, clouds are uncommon there. Option C correctly combines both causes. More water vapour would favour clouds, while dust, smoke, and surface heating are not the main explanation for the stratosphere.
Frequently asked questions
What is the correct answer to this question?
Less water vapour and stable air
Why is this the correct answer?
Cloud formation generally requires sufficient water vapour, cooling, and vertical movement of air. The stratosphere contains very little water vapour and is comparatively stable, so there is limited convection and condensation; consequently, clouds are uncommon there. Option C correctly combines both causes. More water vapour would favour clouds, while dust, smoke, and surface heating are not the main explanation for the stratosphere.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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