defence exam CISF Constable Driver 2025 General Knowledge Geography (World Geography) Climatology

प्रारंभिक पृथ्वी का वातावरण मुख्य रूप से ___________से बना था।

1
NH3, CH4 और H2S
2
NH3, H2S और O2
3
NH3, CH4 और O2
4
CH4, H2S और O2
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