Nature's Running Water

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Across
  1. 2. Home to tadpoles and newts
  2. 3. Flows to the sea
  3. 7. Rushing over at Niagara
  4. 8. Shooting into the air in Iceland
  5. 9. Biggest expanse of water in the world
  6. 10. Michigan and Windermere for example
Down
  1. 1. Small tributary
  2. 2. Crabs hide in this under rocks
  3. 4. Manmade waterway
  4. 5. Caspian and Black for example
  5. 6. One of these is usually babbling
  6. 10. A Scottish lake