Seaweed and other plants generated the first free atmospheric oxygen, vital for life on Earth. [1]
The primitive planetary atmosphere, lacking free oxygen and nitrogen, is evolving with water vapor, carbon monoxide, carbon dioxide, and hydrogen chloride, influenced by volcanic gases and meteoric bombardment. [2]
On morontia worlds like Edentia, the atmosphere is a unique blend of the usual three-gas mixture plus a morontia gas for the respiration of morontia creatures, free from storms, hurricanes, summer, and winter, allowing for embellished outdoor settings. [3]
The sum of parts in the universe is often greater than their predictable consequences; mathematics and material science alone could not have predicted the creation of liquid water from two hydrogen atoms and one oxygen atom. [4]