nature

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Across
  1. 4. a way made by different material over a river or a valley.
  2. 5. a hill of sand created by the action of wind or water.
  3. 7. a steep rock face that descends sharply.
  4. 8. a dry region with no vegation.
  5. 9. a significant expanse of saltwater that is less extensive than an ocean.
  6. 10. a place along the edge of a sea or ocean.
  7. 13. a land on both sides of a river.
Down
  1. 1. a place of the earth that is not covered by water.
  2. 2. a piece of land encircled by water.
  3. 3. an extensive expanse of saltwater that spans most of the earth's surface.
  4. 4. a place full of sand or pebbly shore by the sea or the ocea.
  5. 6. a tower with a bright light.
  6. 8. a barrier built to keep water and create a reservoir.
  7. 11. a public area of land designed for recreational activities.
  8. 12. a man-made waterway.
  9. 14. a water area that is surrounded on most sides by land.