Arrange the following in correct sequence of appearance in geological time scale: (a) Reptiles (b) Amphibians (c) Fish (d) Mammals
- A(c), (b), (a), (d)
- B(b), (c), (a), (d)
- C(a), (b), (c), (d)
- D(c), (a), (b), (d)
✓ Correct answer: A
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