The wonders of nature

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Across
  1. 3. CORAL.........
  2. 4. ....... CHANGE
  3. 8. ......... CENTRE
  4. 10. FUTURE...........
  5. 11. ........ STATION
  6. 12. ....... POWER
  7. 14. ........ WARMING
Down
  1. 1. ........ FUELS
  2. 2. WATER.........
  3. 5. ........ SPECIES
  4. 6. POISONOUS.........
  5. 7. FOOD.......
  6. 9. ........ ENERGY
  7. 13. NATURAL...........