Unit 7 Vocab

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Across
  1. 1. to use less of something
  2. 3. easy to replace as it is provided by nature and replenishes itself
  3. 7. synthetic of manmade material which is lightweight
  4. 8. harmful substances that damage the environment
  5. 9. when you talk with someone that has a different opinion
Down
  1. 1. breaking something down to be used again
  2. 2. to use something again
  3. 4. a synonym of proof
  4. 5. giving the right amount of importance to different things
  5. 6. something that solves a problem
  6. 10. a reason for a viewpoint