Intro to Environmental Science

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Across
  1. 3. pollutants that cannot be broken down by natural processes
  2. 4. pollutants that can be broken down by natural processes
  3. 5. the solid part of the Earth consisting of the crust and the outer mantle
  4. 7. a large extinction of species in a relatively short period of time
  5. 9. all the living things in an ecosystem
  6. 10. human's impact on the Earth
  7. 11. the transformation from an agricultural to an industrial
  8. 12. the impact of a person or community on the environment expressed as the amount of land required to sustain their use of natural resources
  9. 13. any natural resource that can be replenished in a relatively short period of time
  10. 15. non-living things in an ecosystem
  11. 17. a thin layer of gases surrounding Earth
  12. 18. the part of the Earth where life exists
  13. 19. the variety of life in the world or in a particular habitat or ecosystem
  14. 21. an undesired change in the air, water, or soil that adversely affects the health, survival, or activities of humans or toher organisms
Down
  1. 1. a record of geologic events and ife forms in Earth's history
  2. 2. all the water on earth
  3. 6. a principle the geologic processes that occurred in the past can be explained by current geologic processes
  4. 8. materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain
  5. 10. the change form food gathering to food production
  6. 14. the ability to keep in existence natural resources in order to maintain an ecological balance
  7. 16. any community of living and nonliving things that work together
  8. 20. a term that typically describes a species that no longer has any known living individuals