Water Geographical investigation

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Across
  1. 1. caused by human activities
  2. 4. changing factors
  3. 7. Predicting a situation
  4. 8. short form for dissolved oxygen
  5. 10. water that is stored in the soil
Down
  1. 2. Chalky condition of water source
  2. 3. negative human activity affecting water quality
  3. 5. PH value below 7
  4. 6. unit of measurement for dissolved oxygen
  5. 9. question frame