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 many plants green?


assistant
Many plants are green because of the use of a green pigment, chlorophyll, in the process of photosynthesis. Photosynthesis is the process that a plant uses to use its stored energy and carbon dioxide and water into glucose. Chlorophyll’s role is to provide this energy by absorbing sunlight and turn that sunlight into energy. Chlorophyll is green as it absorbs all collards of white light except for green. This color is reflected back which gives chlorophyll a green appearance.