U5 W5&6.

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Across
  1. 4. not planned for or predicted
  2. 7. successful and strong
  3. 10. from other countries or regions
  4. 11. not harming the environment
  5. 12. likely to happen or be true
Down
  1. 1. having to do with farms or farming
  2. 2. happening over a large area or affecting many people
  3. 3. a species of plant or animal that is in danger of becoming extinct
  4. 5. to grow weaker or smaller in number
  5. 6. to tell exactly what something is
  6. 8. harming the environment
  7. 9. a sickness or ailment