The Theory of Needs

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Across
  1. 2. mosimportant, most basic or essential
  2. 3. to explain the meaning of (a word, phrase, etc.)
  3. 6. to mention (something) especially as an example or to support an idea or opinion
  4. 9. to think or worry very much about something
  5. 10. to try to get or do (something) over a period of time
  6. 11. a strong feeling of wanting to have something or wishing for something to happen
  7. 12. the state of being closely associated with or connected to an organization, company, etc.
Down
  1. 1. a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact
  2. 4. to give power to (someone)
  3. 5. to replace (something) with something else
  4. 7. having or showing a feeling of anger or displeasure about someone or something unfair
  5. 8. to explain (something) in a way that is easier to understand