Human Impact

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Across
  1. 3. Unwanted materials produced by human activity.
  2. 6. Protecting and preserving natural resources.
  3. 10. The way humans consume natural materials.
  4. 12. Energy from natural sources that do not run out.
  5. 16. Using resources without harming future generations.
  6. 17. Harmful substances released into air, water, or land.
  7. 19. The rise in Earth's average temperature.
  8. 20. Long-term changes in Earth's climate caused by human
Down
  1. 1. The clearing of forests by humans.
  2. 2. All living and nonliving things that surround organisms.
  3. 4. Gases released into the atmosphere by human actions.
  4. 5. The complete loss of a species.
  5. 7. Too many people living in an ared.
  6. 8. Reusing materials to reduce waste.
  7. 9. Energy resources like coal, oil, and gas.
  8. 11. The growth of cities and human settlements.
  9. 13. Communities of living and nonliving things.
  10. 14. The effect human activities have on the natural
  11. 15. The variety of life on Earth.
  12. 18. The destruction of natural homes for plants and animals.