ENVIRONMENT!

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Across
  1. 4. the action or fact of maintaining or supporting oneself at a minimum level.
  2. 6. untouched, undeveloped
  3. 8. something that motivates you to want to do something, it can be financial or personal motivation
Down
  1. 1. equal to
  2. 2. to make something less
  3. 3. to speed up or go faster
  4. 5. - release
  5. 7. large, a large amount of something (adverb)