What term describes the amount of light received on the surface of a plant?

The term that describes the amount of light received on the surface of a plant is "light intensity." Light intensity is a critical factor in plant growth and development, as it affects photosynthesis, which is the process by which plants convert light energy into chemical energy. The right amount of light can influence a plant's ability to produce food, grow properly, and flourish.

Understanding light intensity helps florists and those in horticultural fields to select appropriate plants for specific environments, ensuring they thrive under the available light conditions. The other term choices relate to different aspects: "filler" refers to supplementary materials used in floral arrangements, "processing" typically refers to the steps taken to prepare flowers for sale or arrangement, and "dry pack" refers to the method of storing flowers without water to prolong their freshness during transport, none of which pertain to the concept of light affecting plant growth.