1.

Which of these statements is false regarding the factors affecting photosynthesis?

A. The leaf orientation of a plant affects photosynthesis
B. Both internal and external factors affect photosynthesis
C. Photosynthetic rate is determined by a factor at sub-optimal level
D. Both CO<sub>2</sub> concentration in the environment and inside the plant affect photosynthesis
Answer» B. Both internal and external factors affect photosynthesis


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