Q. Match the correct set._ans_key_Column I Column II_ans_key_I. Fossil A. 345-405 million years ago_ans_key_II. Devonian period B. Fossillium_ans_key_III. Cambrian period C. 425-500 million years ago_ans_key_IV. Ordovician period D. 500-600 million years ago (Solved)
1. I – B, II – A, III – D, IV – C
2. I – A, II – B, III – C, IV – D
3. I – B, II – C, III – D, IV – A
4. I – B, II – D, III – C, IV – A
- a. I – B, II – A, III – D, IV – C