Final answer:
Green plants would not grow well under a green light or a red light because green light is not efficiently absorbed by plants, and red light does not provide the full spectrum of light needed for healthy plant growth.
Step-by-step explanation:
In general, green plants would not grow well under either a green light or a red light. Green light is not efficiently absorbed by plants, so the seedlings would not grow tall and spindly but would bend towards the light. Red light, on the other hand, promotes flowering in some plants but does not provide the full spectrum of light needed for healthy plant growth. For optimal growth, plants require a combination of various wavelengths of light, including blue and red light.