Which option correctly matches a gas with its atmospheric importance?
Answer and explanation
Correct answer: Oxygen supports respiration and combustion
The governing concept is matching a gas with its actual atmospheric or biological function. Oxygen supports aerobic respiration in living organisms and also supports combustion, because it helps oxidise fuels. Therefore option D is correct. The ultraviolet shield is mainly the ozone layer, argon is largely inert and is not the main respiratory gas, and water vapour is not the principal gas that supports combustion.
Frequently asked questions
What is the correct answer to this question?
Oxygen supports respiration and combustion
Why is this the correct answer?
The governing concept is matching a gas with its actual atmospheric or biological function. Oxygen supports aerobic respiration in living organisms and also supports combustion, because it helps oxidise fuels. Therefore option D is correct. The ultraviolet shield is mainly the ozone layer, argon is largely inert and is not the main respiratory gas, and water vapour is not the principal gas that supports combustion.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Introduction to Accounting.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
