Interior Yukon-Alaska Alpine Tundra Ecosystem

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Across
  1. 4. A thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions
  2. 6. a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen
  3. 7. relating to or denoting a zoogeographical region comprising North America as far south as northern Mexico, together with Greenland
  4. 9. a thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions
  5. 10. relating to high mountains
Down
  1. 1. plants considered collectively, especially those found in a particular area or habitat.
  2. 2. relating to or characteristic of the climatic zone south of the Arctic, especially the cold temperate region dominated by taiga and forests of birch, poplar, and conifers.
  3. 3. range a line of mountains connected by high ground.
  4. 5. an uncultivated, uninhabited, and inhospitable region.
  5. 8. a large North American reindeer.