system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Why are most plans green?


assistant
Plants look green to us because they absorb red light most efficiently and reflect green light. Red light is absorbed by chlorophyll molecules in plants which use it for photosynthesis. Photosynthesis is the process by which plants and other organisms use sunlight to synthesize foods from carbon dioxide and water.