Which gas is a byproduct of the process of photosynthesis?

The process of photosynthesis primarily occurs in plants, algae, and some bacteria, where they convert light energy, usually from the sun, into chemical energy stored as glucose. During this process, carbon dioxide from the atmosphere is absorbed by the plant and combined with water, using sunlight as an energy source. One of the key outcomes of this biochemical reaction is the production of oxygen, which is released into the atmosphere as a byproduct.

This liberation of oxygen is significant for life on Earth, as it contributes to the oxygen content of the atmosphere, which is essential for the survival of aerobic organisms, including humans. Understanding this process highlights the crucial role that plants play not only in their own survival but also in maintaining the balance of gases in the atmosphere, contributing to the overall health of our ecosystem.