On what basis is the main distinction between permanent and variable gases made?
Answer and explanation
Correct answer: On the basis of stability or variability of their proportion
Permanent gases are those whose proportions in dry air remain nearly constant over broad areas and long periods, whereas variable gases change noticeably with location, season and atmospheric processes. The distinction therefore depends on the stability or variability of their atmospheric proportion. Option C is correct. Colour, sound and mountain-building ability have no role in this classification, so options A, B and D are irrelevant.
Frequently asked questions
What is the correct answer to this question?
On the basis of stability or variability of their proportion
Why is this the correct answer?
Permanent gases are those whose proportions in dry air remain nearly constant over broad areas and long periods, whereas variable gases change noticeably with location, season and atmospheric processes. The distinction therefore depends on the stability or variability of their atmospheric proportion. Option C is correct. Colour, sound and mountain-building ability have no role in this classification, so options A, B and D are irrelevant.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
