Why is argon placed among permanent atmospheric gases?
Answer and explanation
Correct answer: Because its amount is relatively stable and it is an inert gas
Permanent atmospheric gases are gases whose proportions remain nearly constant over ordinary timescales. Argon is a noble gas and reacts very little with other substances, so natural processes do not rapidly remove or add it. Its amount in dry air is about 0.93%, which is comparatively stable. Therefore option A is correct; water vapour is highly variable, dust is particulate matter, and carbon dioxide is a greenhouse gas rather than the main one.
Frequently asked questions
What is the correct answer to this question?
Because its amount is relatively stable and it is an inert gas
Why is this the correct answer?
Permanent atmospheric gases are gases whose proportions remain nearly constant over ordinary timescales. Argon is a noble gas and reacts very little with other substances, so natural processes do not rapidly remove or add it. Its amount in dry air is about 0.93%, which is comparatively stable. Therefore option A is correct; water vapour is highly variable, dust is particulate matter, and carbon dioxide is a greenhouse gas rather than the main one.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
