crosswords

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Across
  1. 4. rules for solving a problem in a finite number of steps
  2. 6. marking off as different
  3. 7. a large change in the way something is organized
  4. 8. a contention by words or arguments
Down
  1. 1. something that follows as a result or consequence
  2. 2. a room with sound-reflecting walls used for producing hollow or echoing sound effects
  3. 3. when you are scatter or spread widely
  4. 5. to act one upon another