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Arrange the following gases in descending order of percentage in the atmosphere. 1. Oxygen 2. Nitrogen 3. Carbon Dioxide 4. Argon
Correct Answer: (b)
Official keyThis question appeared in the GPSC Prelims 2017 examination (GS-II). It is Question 74 out of 400 questions in this paper.
This question was part of the GPSC Prelims 2017 (GS-II). The GPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all GPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.