CHALLENGE WORDS

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Across
  1. 3. to comfort somebody
  2. 5. illegal substances that cause addiction
  3. 6. natural reaction towards our environment
  4. 7. activities someone does regularly
  5. 8. a way to deal with a problem
  6. 9. to succeed when dealing with a problem
Down
  1. 1. group of things that form something more complex
  2. 2. compulsive need to use a substance
  3. 4. to keep something from happening