Wonders

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Across
  1. 3. not based on reason or logic
  2. 6. to choose something for a certain purpose
  3. 7. first
  4. 8. best
Down
  1. 1. people who speak or write in support of something
  2. 2. problems or disadvantages
  3. 4. able to be used again
  4. 5. able to invade an environment and push out native species