Might phosphorus levels differ between planets?
Des Marais. Yesterday we linked size to the timing of progression towards surface oxidation. The bigger the planet, the longer its heat flow and volcanism persist and perhaps the longer interval before O2 can increase in the atmosphere. Sleep. Earths composition is determined by the initial solar system composition, which goes back to the origins of the nebular materials. The less volatile elements dominate the terrestrial planets. The oxidation state of a planets crust is controlled by iron inventories, by water and how much it reacts, etc. Regarding the development of photosynthesis very early in Earth history, light was initially very hazardous to organic molecules in the earliest, less sophisticated organisms. Adaptations allowed organisms to move towards living at higher light levels and then ultimately evolving to utilize light. Mojzsis. Phosphorus is the ninth most abundant element in the crust, but it will always be a limiting nutrient due to solubility limitations (e.g., the s
