Question:
Which of the following processes adds \(\text{CO}_{2}\) to the atmosphere?
Which of the following processes adds \(\text{CO}_{2}\) to the atmosphere?
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Respiration oxidises food and releases carbon dioxide.
Updated On: Nov 12, 2026
- Photosynthesis
- Respiration
- Carboxylation.
- Nitrification.
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Respiration oxidises food such as glucose to release energy: \(\text{C}_{6}\text{H}_{12}\text{O}_{6} + 6\text{O}_{2} \rightarrow 6\text{CO}_{2} + 6\text{H}_{2}\text{O}\).
Step 2: Other processes
Photosynthesis and carboxylation take up and fix \(\text{CO}_{2}\). Nitrification oxidises ammonia to nitrite and nitrate.
Step 3: Conclusion
Only respiration releases \(\text{CO}_{2}\) into the air.
Final Answer:
Respiration adds carbon dioxide to the atmosphere. \[ \boxed{\text{(B) }\text{Respiration}} \]
Respiration oxidises food such as glucose to release energy: \(\text{C}_{6}\text{H}_{12}\text{O}_{6} + 6\text{O}_{2} \rightarrow 6\text{CO}_{2} + 6\text{H}_{2}\text{O}\).
Step 2: Other processes
Photosynthesis and carboxylation take up and fix \(\text{CO}_{2}\). Nitrification oxidises ammonia to nitrite and nitrate.
Step 3: Conclusion
Only respiration releases \(\text{CO}_{2}\) into the air.
Final Answer:
Respiration adds carbon dioxide to the atmosphere. \[ \boxed{\text{(B) }\text{Respiration}} \]
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