Physical Geography

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Across
  1. 3. The movement of matter/energy going into a system
  2. 4. Meaning: to write
  3. 6. The output is balanced by the input
  4. 7. Word for Earth
  5. 8. Interacting parts
  6. 9. The movement or energy going out of a system
  7. 10. The interaction between parts of a system(s)
Down
  1. 1. Outer part of the earth's crust
  2. 2. To consider how everything is related
  3. 5. an observable fact, occurrence or circumstance