申論題

(5) (10 pts) Plcase describe in dctail how the atmospheric composition changed, starting from the Earth formed to now.
6 Table A lists the major redox processes occurring in the sediments and their redox potential (, in volt) at 25 C. I atmi, unit activity, and pH = 7. In the ecosystemn, animals and microbes usually perform respiration through the oxidation of carbohydrates to get energy and release CO₂. Dependent on the environment, diflerent proces sses will be performed.