Environment

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Across
  1. 3. causes erratic weather conditions
  2. 5. the cutting down of trees for use of its land
  3. 6. a biological community of interacting organisms and their physical environment
  4. 8. the introduction of harmful materials into the environment
Down
  1. 1. Primary Greenhouse Gas emitted through human activities
  2. 2. the planet that humans exist on
  3. 4. the planting of native trees in an attempt to restore an area to what resembles a natural forest
  4. 7. able to decay naturally