In which condition is the role of atmospheric water vapour in rainfall formation most clearly seen?
Answer and explanation
Correct answer: When moist air cools to saturation and condensation
Rainfall formation requires moisture as well as cooling. When moist air rises or is otherwise cooled, its temperature may reach the dew point and the air becomes saturated. Excess water vapour then condenses on tiny particles into cloud droplets or ice crystals. These particles can grow and eventually fall as precipitation. Dry air cannot provide the necessary vapour, while solid nitrogen and loss of gravity are unrelated. Thus, option B is correct.
Frequently asked questions
What is the correct answer to this question?
When moist air cools to saturation and condensation
Why is this the correct answer?
Rainfall formation requires moisture as well as cooling. When moist air rises or is otherwise cooled, its temperature may reach the dew point and the air becomes saturated. Excess water vapour then condenses on tiny particles into cloud droplets or ice crystals. These particles can grow and eventually fall as precipitation. Dry air cannot provide the necessary vapour, while solid nitrogen and loss of gravity are unrelated. Thus, option B is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bank Reconciliation Statement. Topic: Reconciling cash book and passbook differences.
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