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Question
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
Match the Columns
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Solution
| Nitrogen | Fertilizer |
| Oxygen | Respiration in living animals |
| Carbon dioxide | Fire extinguisher |
| Dry ice | Refrigerator |
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