Why is the vertical distribution of water vapour different from permanent gases in atmospheric composition?
Answer and explanation
Correct answer: Because its main source is surface evaporation and amount decreases rapidly with height
Unlike relatively well-mixed permanent gases, water vapour is continuously added mainly by evaporation from oceans, land, and vegetation near the surface. As air rises, it cools, causing condensation and removal through clouds and precipitation; consequently, humidity generally decreases rapidly with altitude. Option A gives both the source and the vertical reason. The other statements contradict atmospheric observations.
Frequently asked questions
What is the correct answer to this question?
Because its main source is surface evaporation and amount decreases rapidly with height
Why is this the correct answer?
Unlike relatively well-mixed permanent gases, water vapour is continuously added mainly by evaporation from oceans, land, and vegetation near the surface. As air rises, it cools, causing condensation and removal through clouds and precipitation; consequently, humidity generally decreases rapidly with altitude. Option A gives both the source and the vertical reason. The other statements contradict atmospheric observations.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting. Topic: accounting principles.
