Canada: All about nature?

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Across
  1. 2. the land next to/along the sea or ocean
  2. 4. the regions of the world around the North Pole
  3. 5. a part of the sea, or of a large lake, partly surrounded by a wide curve of land
  4. 6. a natural flow of water that continues in a long line across land to the sea
  5. 7. a large area of land that is covered with trees
  6. 10. a very high hill, often with rocks near the top
  7. 11. the outline of buildings against the sky
Down
  1. 1. a slow-moving mass of ice, formed from snow on mountains
  2. 3. an area of low land between hills or mountains, often with a river flowing through it
  3. 5. something which goes over a road, railway or river so people can get to the other side
  4. 8. the water that covers most of the earth
  5. 9. a large area of water on land