Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Knowledge Geography (World Geography) Origin and evolution of Universe Solar system
According to Nebular hypothesis, how does a galaxy form?
1
By the accumulation of hydrogen gas in the form of a very large cloud called nebula
2
By the accumulation of oxygen gas in the form of a very large cloud called nebula
3
By a fission reaction of hydrogen gas
4
More than one of the above
5
None of the above