Rivers

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Across
  1. 2. river water or rainwater
  2. 4. a loose aggregation of small water-worn or pounded stones
  3. 10. Pertaining to a rock that is incapable of transmitting fluids because of low permeability
  4. 11. water flows over a vertical drop
  5. 13. water found underground in the cracks and spaces in soil
  6. 14. Water from rain
  7. 15. the level below which the ground is saturated with water
  8. 16. generally flat area of land next to a river or stream
  9. 17. body of rock and sediment that holds groundwater
  10. 19. A burst of very heavy rain that causes a sudden flood
Down
  1. 1. a river or stream flowing into a larger river or lake
  2. 3. portion of land drained by a river and its tributaries
  3. 5. a large natural stream of water flowing in a channel to the sea
  4. 6. portion of the subsurface above the groundwater table
  5. 7. artificial lake used as a source of water supply
  6. 8. Its rain but much stronger
  7. 9. sharply angled land
  8. 12. a low area of land between hills or mountains
  9. 13. huge mass of ice that moves slowly over land
  10. 18. overflow of water that submerges land that is usually dry