Water and Ecosystems

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Across
  1. 5. Portion of land drained by a river and its tributaries
  2. 9. A non-living organism
  3. 11. extends from the surface to 200 meters
Down
  1. 1. water collected on the surface of the ground
  2. 2. Water that is safe to drink
  3. 3. different positions in the food chain
  4. 4. breaks down organic material
  5. 6. Tide meets the stream
  6. 7. how plants and animals are connected
  7. 8. an organism biological community/ environment
  8. 10. water held underground