Big Bang
Produced some He and Li, but stellar processes produce more He with time. Interestingly, normal star "burning" *destroys* Lithium, so if it were not renewed in supernovae, it would be a universally declining resource.
Space/Science » in reply to Elemental evolution
Produced some He and Li, but stellar processes produce more He with time. Interestingly, normal star "burning" *destroys* Lithium, so if it were not renewed in supernovae, it would be a universally declining resource.