Rain and Water

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Across
  1. 1. A system for transporting fresh water.
  2. 4. (6,6) Idiom about finding positivity in negativity.
  3. 6. Biome defined by low rainfall.
  4. 7. A sudden current
  5. 9. Diverse estuary biome preventing erosion.
  6. 14. Description for water with high mineral content.
  7. 15. (4,4,3,4) Sudden lightning from a clear sky.
  8. 16. That which prevents an overflow becoming a flood.
  9. 17. (3,7)Slang for getting married in the rain.
Down
  1. 2. Salt and freshwater reptile.
  2. 3. A mold assosciated with wet clothes.
  3. 5. On the edges of roofs and streets to direct water.
  4. 8. The smell of earth after rain.
  5. 10. (4,4) Dangerous weather event caused by pollution.
  6. 11. Extremophile bird.
  7. 12. Come to the surface after rain.
  8. 13. The gradient describing ocean water temperature.