1. Write three complete sentences to answer the following question. How does
photosynthesis contribute to the cycling of matter in an ecosystem? *
Your answer
The three events that occur during the process of photosynthesis are: (i) Absorption of light energy by chlorophyll. (ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen. (iii) Reduction of carbon dioxide to carbohydrates.
