Why are normal convective clouds very rare in the stratosphere?
Answer and explanation
Correct answer: Water vapour is low and air is stable there
Ordinary convective clouds require sufficient water vapour and an unstable vertical temperature structure that allows warm air to rise, cool, and condense. The stratosphere is comparatively dry because most water vapour is trapped below, and its temperature structure is stable, suppressing strong vertical convection. Therefore B is correct. It is not a vacuum, sea moisture is not greatest there, and pressure decreases rather than increases with height.
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What is the correct answer to this question?
Water vapour is low and air is stable there
Why is this the correct answer?
Ordinary convective clouds require sufficient water vapour and an unstable vertical temperature structure that allows warm air to rise, cool, and condense. The stratosphere is comparatively dry because most water vapour is trapped below, and its temperature structure is stable, suppressing strong vertical convection. Therefore B is correct. It is not a vacuum, sea moisture is not greatest there, and pressure decreases rather than increases with height.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Incomplete Records.
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