Biology for IGCSE & O level - Plant Nutrition (Section 2 - No. 17)

Which of these is an example of a way to increase the rate of photosynthesis in a greenhouse?
Increasing the temperature.
Increasing the light intensity.
Increasing the carbon dioxide levels.
Decreasing the water supply.

Explanation

Temperature, light, and CO2 concentration can be controlled in a greenhouse to optimize photosynthesis.

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