Fold Mountains

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Across
  1. 4. a folding period 250 million years ago
  2. 5. a social negative to fold mountains
  3. 8. a folding period 400 million years ago
Down
  1. 1. a folding period 35 Million years ago
  2. 2. a down-fold
  3. 3. an Economical benefit to fold mountains
  4. 6. an Up-fold
  5. 7. The number of you tries the alps occupy