As we learned in class on 2/12, one product of photosynthesis is oxygen. oxygen is very important to us and many life forms we know but before photosynthesizers evolved, oxygen was toxic to life. write 1 to 2 complete paragraphs answering the following questions. 1. what is the chemical formula of photosynthesis? how many molecules of each compound results? 2. for what specific reasons was photosynthesis harmful to life forms that existed when this chemical process evolved? 3. what evidence do we have that shows this occurrence? (there were several mentioned.)