What is the common role of carbon dioxide and water vapour?
Answer and explanation
Correct answer: Both contribute to the greenhouse effect by absorbing heat.
The governing concept is the greenhouse effect and Earth’s energy balance. The surface emits long-wave infrared radiation, and both carbon dioxide and water vapour absorb parts of this outgoing radiation and re-emit energy, helping retain heat in the lower atmosphere. Therefore A gives the shared role. They are not both respiratory gases, inert gases, or dust particles, so B, C and D are incorrect.
Frequently asked questions
What is the correct answer to this question?
Both contribute to the greenhouse effect by absorbing heat.
Why is this the correct answer?
The governing concept is the greenhouse effect and Earth’s energy balance. The surface emits long-wave infrared radiation, and both carbon dioxide and water vapour absorb parts of this outgoing radiation and re-emit energy, helping retain heat in the lower atmosphere. Therefore A gives the shared role. They are not both respiratory gases, inert gases, or dust particles, so B, C and D are incorrect.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting. Topic: accounting principles.
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