There is little sunlight at high latitudes during the winter, so few crops can grow even if temperatures are regulated. To address this problem, special lamps can be used in greenhouses.These lamps allow plants to grow during the winter months. Scientific knowledge of which topic was necessary to solve this problem?
the temperature that promotes the fastest growth in plants
the colors of light that plants require for photosynthesis
the frequencies of light that cause the least water loss in growing plants
the wavelengths of green light that can be used for photosynthesis

Question

There is little sunlight at high latitudes during the winter, so few crops can grow even if temperatures are regulated. To address this problem, special lamps can be used in greenhouses.These lamps allow plants to grow during the winter months. Scientific knowledge of which topic was necessary to solve this problem?
the temperature that promotes the fastest growth in plants
the colors of light that plants require for photosynthesis
the frequencies of light that cause the least water loss in growing plants
the wavelengths of green light that can be used for photosynthesis

nekoaisu · Answer

The colors of light that plants require for photosynthesis would be the best answer.