Which analysis becomes clearer when water vapour is excluded from dry air composition?
Answer and explanation
Correct answer: Comparative study of stable percentages of major gases
The governing concept is the distinction between moist air and dry air composition. Water vapour varies greatly with location, temperature, and weather, so including it can obscure comparisons among the relatively stable major gases. When it is excluded, the percentages of nitrogen, oxygen, argon, and other dry-air constituents can be compared more consistently. Therefore option C is correct; A, B, and D do not describe the purpose of defining dry-air composition.
Frequently asked questions
What is the correct answer to this question?
Comparative study of stable percentages of major gases
Why is this the correct answer?
The governing concept is the distinction between moist air and dry air composition. Water vapour varies greatly with location, temperature, and weather, so including it can obscure comparisons among the relatively stable major gases. When it is excluded, the percentages of nitrogen, oxygen, argon, and other dry-air constituents can be compared more consistently. Therefore option C is correct; A, B, and D do not describe the purpose of defining dry-air composition.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
