First Great Revolution occurred during:
A.Mesozoic Era
B.Coenozoic Era
C.Palaeozoic Era
D.Archaeozoic Era
A.Mesozoic Era
B.Coenozoic Era
C.Palaeozoic Era
D.Archaeozoic Era
A.Mesozoic Era
B.Palaeozoic Era
C.Both (a) & (b)
D.None of these Eras
A.Triassic period
B.Cretaceous period
C.Carboniferous period
D.Devonian period
A.4 lakh years
B.5 lakh years
C.6 lakh years
D.7 lakh years
A.Azoic
B.Archaeozoic
C.Proterozoic
D.Palaeozoic
A.6.5 crore years ago
B.13.6 crore years ago
C.3 billion years ago
D.4.6 billion years ago
A.1 billion years ago
B.2 billion years ago
C.3 billion years ago
D.4 billion years ago
A.Carboniferous and Permian Period
B.Jurassic period
C.Silurian and Devonian period
D.Eocene and Oligocene Period
A.Ordovician
B.Devonian
C.Cambrian
D.Silurian
A.Quarternary
B.Tertiary
C.Creataceous
D.None of these