railway RRB Group D Mock Test Series 2024-25 General Knowledge Geography (World Geography) Origin and evolution of Universe Solar system

શુક્રનું વાતાવરણ મુખ્યત્વે કયા એસિડના ઘટ્ટ, સફેદ અને પીળા વાદળોથી બનેલું છે. 

1
HCl
2
HNO3
3
HClO4
4
H2SO4

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