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प्रश्न
Which set correctly lists the major gases present in the primitive atmosphere?
पर्याय
\(O_2\), \(O_3\), \(CO\), and \(SO_2\)
\(HCl\), \(H_2S\), \(SO_2\), and \(O_2\)
\(H_2\), \(CH_4\), \(NH_3\), \(CO_2\), \(N_2\), and \(H_2O\) vapour
\(He\), \(Ne\), \(Ar\), and \(Kr\)
MCQ
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उत्तर
The primitive (reducing) atmosphere contained hydrogen (\(H_2\)), methane (\(CH_4\)), ammonia (\(NH_3\)), carbon dioxide (\(CO_2\)), nitrogen (\(N_2\)), and water vapour (\(H_2O\)). Free oxygen was not present.
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