Why does including water vapour make the total atmospheric composition appear different from place to place?
Answer and explanation
Correct answer: Because water vapour amount is highly variable
The governing concept is variable atmospheric composition. Water vapour is continuously added by evaporation and removed by condensation or precipitation, so its concentration changes with temperature, humidity, season, altitude, and proximity to water bodies. Consequently, percentages calculated for moist air can differ from place to place, whereas the major dry-air gases are comparatively stable. Nitrogen is not confined to oceans, and argon does not disappear at night.
Frequently asked questions
What is the correct answer to this question?
Because water vapour amount is highly variable
Why is this the correct answer?
The governing concept is variable atmospheric composition. Water vapour is continuously added by evaporation and removed by condensation or precipitation, so its concentration changes with temperature, humidity, season, altitude, and proximity to water bodies. Consequently, percentages calculated for moist air can differ from place to place, whereas the major dry-air gases are comparatively stable. Nitrogen is not confined to oceans, and argon does not disappear at night.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Depreciation, Provisions, and Reserves.