Why is argon mentioned after oxygen and nitrogen in air composition?
Answer and explanation
Correct answer: Because it ranks third by amount in dry air
The governing concept is the relative composition of dry air. Nitrogen is the largest component, oxygen is second, and argon is the third most abundant gas, at roughly 0.93% by volume in dry air. Thus option A explains its position in the usual list. Argon is chemically inert, is not the main greenhouse gas, and does not drive cloud formation. Its comparison with water vapour is also invalid because water vapour varies greatly.
Frequently asked questions
What is the correct answer to this question?
Because it ranks third by amount in dry air
Why is this the correct answer?
The governing concept is the relative composition of dry air. Nitrogen is the largest component, oxygen is second, and argon is the third most abundant gas, at roughly 0.93% by volume in dry air. Thus option A explains its position in the usual list. Argon is chemically inert, is not the main greenhouse gas, and does not drive cloud formation. Its comparison with water vapour is also invalid because water vapour varies greatly.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Depreciation, Provisions, and Reserves.
