Human Environment Interaction

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Across
  1. 4. the act of introducing harmful substances in the air
  2. 5. the variety of plants and animals in an environment
  3. 6. a solid inorganic substance of natural occurrence
  4. 7. a resource that Earth or humans cannot replace in a somewhat short period of time
  5. 10. to establish a colony; settle
Down
  1. 1. a resource that Earth or humans can replace
  2. 2. to clear a large area of trees or forest
  3. 3. the large scale introduction of manufacturing and factories
  4. 8. a district lying directly outside a city or town
  5. 9. natural fuel such as coal or gas, formed in the geological past from the remains of living organisms