(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.
(a) (6 pts) Above the ground and near the surface layer, aerobic(有 氧) respiration is a major process. Please write the overall reaction for aerobic respiration and calculate AE°(w) (using CH2Oas the reactant).