ENVIRONMENT

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Across
  1. 3. warming
  2. 4. fumes
  3. 5. species
  4. 8. the environment
  5. 10. extinct / die out
  6. 11. fuels
Down
  1. 1. pollution
  2. 2. natural resources
  3. 6. sewage
  4. 7. greenhouse gases
  5. 9. sources of energy