Fold Mountains

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Across
  1. 1. farming, Upland areas are only suitable for this type of farming
  2. 4. Alpine, these fold mountains do not exist in Ireland
  3. 6. plate, The lighter plate
  4. 7. Caledonian, These fold mountains formed 400 million years ago
  5. 9. The valleys in between the ridges
Down
  1. 2. Long narrow ridges, these are the mountains
  2. 3. Armorican, This fold mountain period produced the mountains of Munster, this part of Ireland is often called in Ridge and Valley province
  3. 5. plate, the heavier plate
  4. 8. Mountains, Formed when two plates collide