Final answer:
Using green glass in a greenhouse instead of clear glass could inhibit plant growth, as plants require red and blue wavelengths for photosynthesis which could be filtered out by the green glass.
Step-by-step explanation:
If an amateur gardener builds a greenhouse using green glass instead of clear glass, the plants may not grow as well as they would under clear glass. This is because green glass will filter out some wavelengths of light, specifically the red and blue parts of the spectrum that are crucial for plant growth through photosynthesis.
While greenhouses are designed to trap heat and create a warm environment, they also need to allow in the full spectrum of sunlight. Plants primarily absorb red and blue light, and use these colors to perform photosynthesis, which is essential for their growth and development. Since green glass absorbs and reflects green light, the plants inside the greenhouse would be deprived of the full light spectrum they need, possibly leading to them growing tall and spindly, similar to how they would react if grown in darkness.