Solved UPSC CDS/OTA Question
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Q · Basic Ecology and EnvironmentMedium · 45s
Which one of the following gases contributes most to the greenhouse effect?
TopicBasic Ecology and Environment
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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CO₂ is the most abundant anthropogenic greenhouse gas.
Final Answer: Option D — Carbon dioxide