Why can water vapour be higher in the lower atmosphere?
Answer and explanation
Correct answer: Vapour comes from surface water sources and plants
The governing process is the water cycle. Solar heating causes evaporation from oceans, lakes, rivers and moist soil, while plants add water vapour through transpiration. Since these sources are concentrated near Earth’s surface, the lower atmosphere generally contains more water vapour than higher layers; cooling then causes condensation. Therefore option B is correct, whereas the other choices do not explain moisture distribution.
Frequently asked questions
What is the correct answer to this question?
Vapour comes from surface water sources and plants
Why is this the correct answer?
The governing process is the water cycle. Solar heating causes evaporation from oceans, lakes, rivers and moist soil, while plants add water vapour through transpiration. Since these sources are concentrated near Earth’s surface, the lower atmosphere generally contains more water vapour than higher layers; cooling then causes condensation. Therefore option B is correct, whereas the other choices do not explain moisture distribution.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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