Lanscapes and natural features

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Across
  1. 1. a large natural stream of water flowing in a channel to the sea
  2. 4. an area of land overgrown with dense forest and tangled vegetation
  3. 6. the solid mineral material forming part of the surface of the eart
  4. 7. a very large expanse of sea
  5. 9. a cascade of water falling from a height,
  6. 12. a large area covered chiefly with trees
  7. 13. a cascade of water falling from a height,
Down
  1. 2. a piece of land surrounded by water.
  2. 3. a pebbly or sandy shore, especially by the ocean
  3. 5. arid land with usually sparse vegetation
  4. 8. the part of the land near the sea; the edge of the land.
  5. 10. agged rock, coral, or sand just above or below the surface of the sea.
  6. 11. a large body of water surrounded by land.
  7. 12. an area of open land