Water and Ecosystems

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Across
  1. 4. how acidic or basic a substance is
  2. 6. non-living
  3. 8. how much salt is in water
  4. 10. when one organism is benefited and one is neutral
  5. 13. When one organism hunts another
Down
  1. 1. the clarity of water
  2. 2. an interaction with two organisms in one ecosystem
  3. 3. phosphoric acid
  4. 5. when one organism harms and lives in or on another
  5. 7. nitric acid
  6. 9. an environment that has living and non-living things
  7. 11. when both organisms are benefited in an interaction
  8. 12. an area of brackish water between rivers and oceans