In comparing carbon dioxide and methane in the atmosphere, which point is most important at expert level?
Answer and explanation
Correct answer: Both quantity and per-molecule heat effect can differ
A meaningful comparison of carbon dioxide and methane must consider both concentration and radiative efficiency. Carbon dioxide is present in much greater abundance and can remain influential for a long time, while methane is far less abundant but absorbs infrared radiation strongly per molecule and has a shorter atmospheric lifetime. Therefore, percentage alone does not determine climate importance. Options B and D confuse gases with unrelated substances, while C is false because both are greenhouse gases.
Frequently asked questions
What is the correct answer to this question?
Both quantity and per-molecule heat effect can differ
Why is this the correct answer?
A meaningful comparison of carbon dioxide and methane must consider both concentration and radiative efficiency. Carbon dioxide is present in much greater abundance and can remain influential for a long time, while methane is far less abundant but absorbs infrared radiation strongly per molecule and has a shorter atmospheric lifetime. Therefore, percentage alone does not determine climate importance. Options B and D confuse gases with unrelated substances, while C is false because both are greenhouse gases.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
