Environment and Ecology

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Across
  1. 8. Study of relationships between organisms and their environment
  2. 9. Group of similar organisms capable of reproduction
  3. 11. Natural home of a plant or animal
  4. 12. Grown or produced without synthetic chemicals
  5. 14. Variety of life in a particular ecosystem
  6. 15. Keeping something in its original or existing state
  7. 19. Element associated with fossil fuels and emissions
  8. 20. Action to reduce severity of environmental impact
  9. 21. At risk of extinction
  10. 22. Community of organisms and their physical environment
  11. 24. Surroundings or conditions in which living things exist
  12. 26. Contamination of air, water, or soil
  13. 27. Returning something to its former condition
  14. 28. Existing in or caused by nature
Down
  1. 1. Structure or effect that traps heat
  2. 2. Meeting present needs without harming future generations
  3. 3. Capable of being maintained over time
  4. 4. Decline in quality of land, water, or air
  5. 5. Presence of harmful substances in the environment
  6. 6. Use resources wisely to avoid waste
  7. 7. Clearing of forests for other land uses
  8. 10. Long-term weather patterns in a region
  9. 13. Measure of environmental impact
  10. 16. Natural materials used for economic gain
  11. 17. Protection and preservation of natural resources
  12. 18. Adjustment to environmental changes
  13. 23. Resource that can be replenished naturally
  14. 24. Release of gases or substances into the air
  15. 25. Animals living in their natural environment
  16. 27. Reprocessing materials to make new products