BI-1897
Carbon cycle and carbon sinks
Biology · Secondary 4 · Medium · Carbon cycle and carbon sinks
Which statement correctly describes how green plants help remove carbon dioxide from the atmosphere in the carbon cycle?
- They use carbon dioxide in photosynthesis to form carbohydrates in their tissues.
- They release carbon dioxide during photosynthesis into the atmosphere.
- They convert carbon dioxide directly into oxygen without making any food.
- They absorb carbon dioxide only at night when stomata are closed.
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