All the plants, algae, and everything with chlorophyll would beg to differ. I really think we cannot consider Earth a closed system, because we're not a rogue planet in the insterstellar void.
Our solar _system_ would be a better approximation of a "closed system".
All the plants, algae, and everything with chlorophyll would beg to differ. I really think we cannot consider Earth a closed system, because we're not a rogue planet in the insterstellar void.
Our solar _system_ would be a better approximation of a "closed system".