Mountains

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Across
  1. 3. Major mountain range in the eastern US
  2. 5. Major mountain range in the western US
  3. 8. Underwater mountain chain
Down
  1. 1. A type of mountain with a crater through which magma, rocks, and gas erupt from within the earth
  2. 2. The layer of Earth in which mountains are located
  3. 4. The plate boundary in which mountains form
  4. 6. Tallest mountain in the world
  5. 7. A large natural elevation of the earth's surface that has risen abruptly from the surrounding level