What the effect of the light on plant what changes were caused by the sunlight

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Light intensity influences the manufacture of plant food, stem length, leaf color and flowering. Generally speaking, plants grown in low light tend to be spindly with light green leaves. A similar plant grown in very bright light tends to be shorter, better branches, and have larger, dark green leaves.

#BrainliestBunch

i am going to guess that it is co2.