a plant requires sunlight for photosynthesis
photosynthesis is process. photosynthesis is not process. plants has not leaves_to_gather_light photosynthesis is chemical_process. photosynthesis is photo_chemical_process. general_photosynthesis is production. general_photosynthesis is not production. plants has leaves_to_gather_light photosynthesis_in_plants is not physiological_process. photosynthesis_in_plants is physiological_process.