How do changes in atmospheric composition throughout earth's history illustrate gaia hypothesis

The Gaia hypothesis proposes that the Earth is a self-regulating intricate structure which involves the atmosphere, the hydrospheres, the biosphere, and the pedosphere, firmly paired as an evolving system. The aforementioned hypothesis claims that this system, called Gaia, looks for a chemical and physical environment that is best for contemporary life as a whole. A lot of processes in the Earth's surface crucial for the conditions of life rely on the interaction of living forms with elements that are inorganic. These processes indicate a global control system that controls Earth's surface atmosphere, temperature, ocean salinity and composition, which is powered by the global thermodynamic disequilibrium state of the Earth system.