photosynthesis means producers / green plants convert from carbon dioxide and water and solar energy into carbohydrates and food and oxygen for themselves & carbohydrates are made of sugars ->  photosynthesis means producers / green plants convert from carbon dioxide and water and solar energy into sugars and food and oxygen for themselves  photosynthesis means producers / green plants convert from carbon dioxide and water and solar energy into sugars and food and oxygen for themselves & if a process converts something into something else then that something else is produced by that process & photosynthesis is a kind of chemical process ->  sugars and oxygen are produced by photosynthesis  sugars and oxygen are produced by photosynthesis & products are produced -> sugars and oxygen are products of photosynthesis