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What system is the earth?

Answer:
Systems are classified according to the exchange of matter and energy with its surroundings; thus, the Earth system is open, but approximately closed. The Earth does exchange energy and it exchanges matter in the form of meteorites, comets, and cosmic rays, as satellites, hydrogen (H), and helium go out.
First answer by Parmwood. Last edit by Parmwood. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 2 [recommend question].

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