earth day

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Across
  1. 1. area Protected region for wildlife and ecosystems.
  2. 9. Able to decompose naturally.
  3. 10. Able to be maintained over time.
  4. 12. Planting trees in deforested areas.
  5. 16. Natural environment where an organism lives.
  6. 17. energy Energy sources that don't produce pollution.
  7. 19. quality Measure of pollutants in the atmosphere.
Down
  1. 2. Able to be replenished naturally.
  2. 3. Duty to care for the planet.
  3. 4. Improving something to make it more environmentally friendly.
  4. 5. Pertaining to the entire planet.
  5. 6. Taking action to bring about environmental change.
  6. 7. Interconnected network of living organisms and their environment.
  7. 8. Ability to recover from environmental changes.
  8. 11. Practices that minimize harm to the planet.
  9. 13. Changing to suit new environmental conditions.
  10. 14. conservation Efforts to reduce water usage.
  11. 15. Natural disaster caused by shifting tectonic plates.
  12. 17. footprint Measure of greenhouse gases produced by human activities.
  13. 18. Produce grown without synthetic pesticides or fertilizers.