Match column I with column II
| Column I | Column II |
| a) Cambrian period | i) Age of Reptiles |
| b) Devoniar period | ii) Age of fishes |
| c) Cenozoic era | iii) Age of inventebrates |
| d) Mesozoic era | iv) Age of mammals |
- ✓a - iii b-ii c-iv d-i
- Ba - iv b-iii $c -i d -i i$
- Ca - iii b-iv c- $i d -i i$
- Da - ii b-iii c- $i$ d-iv
Answer: A.
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