Biology for IGCSE & O level - Plant Nutrition (Section 2 - No. 33)
What is the effect of a high concentration of carbon dioxide on the rate of photosynthesis?
Photosynthesis will stop.
The rate of photosynthesis will decrease.
The rate of photosynthesis will increase.
The rate of photosynthesis will stay the same.
Explanation
Increasing the carbon dioxide concentration generally increases the rate of photosynthesis, up to a point.
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