Contest

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Across
  1. 6. Take the place of.
  2. 7. Something that influences or encourages you to do something
  3. 9. A dramatic and far-reaching change
  4. 10. Make practical and effective use of
Down
  1. 1. Close observation, especially of a suspected spy or criminal
  2. 2. An extremely electrically conductive form of elemental carbon that is composed of a single flat sheet of carbon atoms arranged in a repeating hexagonal lattice
  3. 3. A device used to store electric charge.
  4. 4. A great difference
  5. 5. A unit of computing information that is represented by a state of an atom or elementary particle (such as the spin) and can store multiple values at once due to the principles of quantum mechanics
  6. 8. Very large, colossal