In a sealed greenhouse in bright daylight, the carbon dioxide concentration falls steadily through the morning. What best explains this?

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Question

In a sealed greenhouse in bright daylight, the carbon dioxide concentration falls steadily through the morning. What best explains this?

Accepted Answer

Photosynthesis is removing carbon dioxide faster than respiration returns it — Award 1 mark. Both processes run at once in daylight, and the concentration falls whenever the photosynthesis rate is the larger of the two.

Answer

Photosynthesis is removing carbon dioxide faster than respiration returns it

Answer

Decomposers in the soil are absorbing carbon dioxide

Answer

Carbon dioxide is leaking out through the leaves

Answer

The plants have stopped respiring in the light

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