Biology for IGCSE & O level - Plant Nutrition (Section 3 - No. 29)
What are the gases that diffuse in and out of the leaf tissues through the stomata?
Oxygen and water vapor
Carbon dioxide and oxygen
Carbon dioxide and water vapor
Oxygen and nitrogen
Explanation
Stomata allow carbon dioxide to enter for photosynthesis, and oxygen (produced in photosynthesis) to exit.
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