Environment

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Across
  1. 1. Products made without using chemicals or artificial materials.
  2. 5. Materials that we throw away.
  3. 6. Harmful substances that make air, water, or soil dirty.
  4. 9. gases Gases that trap heat in the Earth’s atmosphere.
  5. 14. The variety of plant and animal life in a place.
  6. 15. The warming of the Earth’s surface due to trapped gases.
  7. 18. Gas or smoke sent into the air by factories or cars.
  8. 20. The balance of weather conditions over many years.
Down
  1. 2. Materials that can be used again and again, such as wind or solar power.
  2. 3. Organic matter we use to make natural fertilizer for plants.
  3. 4. Cutting down too many trees in forests.
  4. 7. Protecting nature and natural resources for the future.
  5. 8. The natural world where living and non-living things interact.
  6. 10. Using things again instead of throwing them away.
  7. 11. The place where an animal or plant naturally lives.
  8. 12. When there is no rain for a long period.
  9. 13. The total amount of carbon dioxide a person or group produces.
  10. 16. Using less power or resources to do the same job.
  11. 17. Animals in danger of disappearing forever.
  12. 19. Not harming the environment and lasting over time.