1.

Match the following:1. Nitrogen(a) Respiration in living animals2. Oxygen(b) Fertilizer3. Carbon dioxide(c) Refrigerator4. Dry ice(d) Fire extinguisher

Answer»
1. Nitrogen(b) Fertilizer 
2. Oxygen(a) Respiration in living animals
3. Carbon dioxide(d) Fire extinguisher 
4. Dry ice(c) Refrigerator


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