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  1. System and surrounding - Energy Education

  2. Environmental science - Wikipedia

  3. 1.1: The System and the Surroundings - Chemistry LibreTexts

  4. 1.1: What is Environmental Science? - Biology LibreTexts

  5. Environmental science | Definition & Facts | Britannica

  6. Environment - Definition and Examples - Biology Online

  7. System & Surroundings - Physics Book - gatech.edu

  8. System and Surroundings — Definition & Overview - expii

  9. The System and the Surroundings | Pathways to Chemistry

  10. 5.5: Comparing the System and the Surroundings