Chemistry · Oct / Nov 2021 · Paper 11 · Question 35
The carbon cycle regulates the amount of carbon dioxide in the atmosphere. Combustion, photosynthesis and respiration are involved in this cycle. How do these processes affect the amount of carbon dioxide in the atmosphere?
- Acombustion increases, photosynthesis increases, respiration increases
- Bcombustion increases, photosynthesis decreases, respiration increases
- Ccombustion decreases, photosynthesis increases, respiration decreases
- Dcombustion decreases, photosynthesis decreases, respiration decreases
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Correct answer: B. combustion increases, photosynthesis decreases, respiration increases
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