AIIMS 2019 Biology Greenhouse Gases MCQ Question
Which gases are responsible for increasing the temperature of atmosphere?
CO, NO₂, H₂S
CO₂, CO, NO
CH₄, CO₂, N₂O
NO₂, H₂S, CO₂
Correct Answer
Detailed Explanation
Option C is correct because methane (CH₄), carbon dioxide (CO₂), and nitrous oxide (N₂O) are all greenhouse gases that trap heat in the atmosphere, contributing to the greenhouse effect and global warming. In contrast, while carbon monoxide (CO) and nitrogen dioxide (NO₂) can have environmental impacts, they are not significant greenhouse gases compared to those listed in option C. Additionally, hydrogen sulfide (H₂S) is not a major contributor to atmospheric warming, making options A and D incorrect.
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