Water Crossword

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Across
  1. 4. Series of small waterfalls
  2. 7. Artificial lake used to store water
  3. 8. Gradual destruction of rock by movement of water
  4. 9. Japanese for Harbor Wave
  5. 10. Small wave on the surface of water spreading out
Down
  1. 1. Continuous movement of water in a direction
  2. 2. Flow of water over a vertical drop or cliff
  3. 3. System used for removing water after heavy rain
  4. 5. Neither floating nor sinking
  5. 6. Rapidly Rotating body of water