Write a short paragraph that explains why the earth would not be considered a closed system and be sure to include evidence or examples for your answer. also, suggest a system that would be considered the ultimate closed system.

The earth would not be considered a closed system. A closed system is a place or a habitat that is self sustaining and does not require any outside help or force. A closed system requires air food water or anything that any organism inside the system would need the earth is not a closed system because humans can easily leave or enter earth via a space ship as well as asteroids crash landing inside earth would be considered as entering. A biosphere is a ultimate closed system (A biosphere is a self sustaining sphere with plants to make air with any other organisms to create carbon dioxide *look up biospheres for more info*)

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