Carda thing

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Across
  1. 3. CO2 trapping gasses
  2. 4. farming in dry areas
  3. 6. wet or dry acid deposition
  4. 7. a warmer global climatet
  5. 8. result of melting snow
Down
  1. 1. people concerned with the quality of the environment
  2. 2. someone who study’s life
  3. 5. chemicals combing with moisture in the air