The presence of which is necessary for photosynthesis? Environmental Science May 22, 2020 Aroma Ann0 A. Chloroform B. Chlorophyll C. Phosphorus D. PolymerRelated posts:Both respiration and photosynthesis require: Which of the following is a compensation point:? __________ energy is the main driving force of the ecological system. Photosynthesis carried out by terrestrial plants is _________ of total photosynthesis??