The main gas produced during photosynthesis is oxygen. This process occurs in plants, algae, and some bacteria, converting carbon dioxide and water into glucose and oxygen using sunlight as energy. The overall chemical equation for photosynthesis can be summarized as carbon dioxide + water + light energy → glucose + oxygen. The oxygen is released into the atmosphere, which is vital for maintaining life on Earth, as it is essential for the respiration of most living organisms. Simultaneously, photosynthesis helps reduce carbon dioxide levels, contributing to environmental balance.