| Column I | Column II | |
| A. Pollen grains | 1. | Photochemical smog |
| B. PAN | 2. | Particulate pollution |
| c. \[C{{O}_{2}}\] | 3. | Global warming |
| D. Cadmium | 4. | Itai-itai disease |
A) A-2 B-1 C-3 D-4
B) A-4 B-2 C-1 D-3
C) A-1 B-2 C-3 D-4
D) A-3 B-1 C-2 D-4
Correct Answer: A
Solution :
| Column I | Column II |
| A. Pollen grains | 2. Particuiate pollution |
| B. PAN | 1. Photochemical smog |
| C. \[C{{O}_{2}}\] | 3. Global warming |
| D. Cadmium | 4. Itai-itai disease |
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