Why is water vapour called a variable element of the atmosphere?
Answer and explanation
Correct answer: Because its amount changes with place, temperature and weather
Water vapour is called a variable atmospheric element because its amount is not constant. Evaporation adds vapour to the air, while condensation and precipitation remove it. Its concentration also changes with temperature, location, altitude and weather; warm, humid areas usually contain more than cold, dry areas. Therefore, option A is correct. Nitrogen is comparatively permanent, water vapour is not found only in rocks, it is not always more abundant than nitrogen, and it is not an inert gas.
Frequently asked questions
What is the correct answer to this question?
Because its amount changes with place, temperature and weather
Why is this the correct answer?
Water vapour is called a variable atmospheric element because its amount is not constant. Evaporation adds vapour to the air, while condensation and precipitation remove it. Its concentration also changes with temperature, location, altitude and weather; warm, humid areas usually contain more than cold, dry areas. Therefore, option A is correct. Nitrogen is comparatively permanent, water vapour is not found only in rocks, it is not always more abundant than nitrogen, and it is not an inert gas.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
