Unit 7

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Across
  1. 4. fast
  2. 7. toxic air
  3. 8. toxic water
  4. 9. what we breathe
  5. 10. managing resources
  6. 12. can include hydro power
  7. 13. saving resources
Down
  1. 1. easy to find
  2. 2. not enough energy for everyone
  3. 3. forms over millions of years
  4. 5. toxic soil
  5. 6. also known as dirt
  6. 11. not enough nutrition