<human>:  What is the process of photosynthesis?
<bot>: Photosynthesis is the process by which plants use the energy from sunlight to convert carbon dioxide and water into sugar, which the plant can use for energy. This process produces oxygen as a by-product, which is released into the atmosphere. Photosynthesis is an essential part of the natural cycle that helps keep the Earth’s environment in balance. Photosynthesis occurs when light energy is absorbed by the chlorophyll molecules in the leaves of a plant. Chlorophyll then uses the energy to convert carbon dioxide and water into sugar and oxygen. The sugar created is then used by the plant as its source of food.